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Tsogolo la Thanzi (TLT) is a longitudinal study in Balaka, Malwai designed to examine how young people navigate reproduction in an AIDS epidemic. Tsogolo la Thanzi means "Healthy Futures" in Chichewa, which is Malawi's most widely spoken language.

The 2019 Household Listing Data are the result of a new census of the original catchment area, 10 years after the initial study began. These data are supplemental to the main TLT series, providing insights into how the Balaka area developed over the past 10 years. It includes data from all persons living within 7 kilometers of the TLT research center.

Tsogolo La Thanzi (TLT) is a decade-long population-based cohort study of young women and men from Balaka, Malawi. Tsogolo La Thanzi means "Health Futures" in Chichewa, Malawi's most widely spoken language. TLT has followed young adults (ages 15-25 at enrollment, 15-35 inclusive) as they navigate relationships and childbearing within the context of a generalized AIDS epidemic. TLT enrolled more than 3000 individuals and collected 11 waves of data, covering a 10-year period (2009-2019) that spans massive changes in the HIV treatment context in Malawi as well as the ages of peak incidence and peak fertility for female respondents.

This particular study contains the data collected from an additional survey referred to as Tsogolo La Thanzi 3 (TLT-3), fielded in 2019, following the release of ten waves of data collected between 2009 and 2015. Unlike the past where the sample included male partners, this third round of data collection focused solely on women.

TLT-3 covered many of the same topics found in the original TLT multi-wave project such as: relationships, religion, HIV/AIDS, pregnancy, marriage, sexually transmitted diseases, and future expectations.

Additionally, modules specific to TLT-3 included: kinship, mental health, and trust in clinics. These data can be used cross-sectionally or can be merged with previous waves to facilitate analyses of a full ten years of social change in Balaka township and across the life course.

The Annual Social and Economic (ASEC) 2024 Supplement is part of the Current Population Survey (CPS) Series. The CPS is a source of official Government statistics on employment and unemployment. The Census Bureau conducts the ASEC (known as the Annual Demographic File prior to 2003) over a three-month period, in February, March, and April, with most of the data collected in the month of March. The ASEC uses two sets of survey questions, the basic CPS and a set of supplemental questions.

The CPS, administered monthly, is a labor force survey providing current estimates of the economic status and activities of the population of the United States. Specifically, the CPS provides estimates of total employment (both farm and nonfarm), nonfarm self-employed persons, domestics, and unpaid helpers in nonfarm family enterprises, wage, and salaried employees, and estimates of total unemployment.

In addition to the basic CPS questions, respondents were asked questions from the ASEC, which provides supplemental data on poverty, geographic mobility/migration, and work experience. Comprehensive work experience information was given on the employment status, occupation, and industry of persons aged 15 and over. Additional data for persons aged 15 and older were available concerning weeks worked and hours per week worked, reason not working full-time, total income and supplemental income components. Demographic variables include age, sex, race, Hispanic origin, marital status, veteran status, educational attainment, occupation, and income. Data on employment and income refer to the previous calendar year, although demographic data refer to the time of the survey.

The occupation and industry information variables in this data collection can help the data users identify individuals who worked in arts and culture related fields. The occupations are listed in a category entitled "Arts, Design, Entertainment, Sports, and Media Occupations," which includes professions such as artists, designers, actors, musicians, and writers (see Appendix B of the User's Guide for further category details). Industries related to the arts and culture are in the "Arts, Entertainment, and Recreation" category (see Appendix A of the User's Guide for further category details). For example, using the occupation and industry information variables from the ASEC help data users to obtain statistics about people in artists' occupations that receive supplemental income, live public housing, or are full-time students.

The ASEC data provided by the Census Bureau are distributed in a hierarchical file structure, with three record types present: Household, Family, and Person. The ASEC is designed to be a multistage stratified sample of housing units, where the hierarchical file structure can be thought of as a person within a family within a household unit. Here the main unit of analysis is the household unit.

The ongoing Consumer Expenditure Survey (CE) provides a continuous flow of information on the buying habits of American consumers and also furnishes data to support periodic revisions of the Consumer Price Index. The survey consists of two separate components:

1. A quarterly Interview Survey in which each consumer unit in the sample is interviewed every three months over a 15-month period, and
2. A Diary Survey completed by the sample consumer units for two consecutive one-week periods.

The Interview Survey was designed to collect data on major items of expense, household characteristics, and income. The expenditures covered by the survey are those that respondents can recall fairly accurately for three months or longer. In general, these expenditures include relatively large purchases, such as those for property, or expenditures that occur on a fairly regular basis, such as rent, utilities, or insurance premiums. Excluded are nonprescription drugs, household supplies, and personal care items. Including global estimates on spending for food, it is estimated that about 90 to 95 percent of expenditures are covered in the Interview Survey.

The Detailed Expenditure Files that comprise this data collection were created from all the major expenditure sections of the Interview Survey questionnaires. These files contain more detailed expenditure records than those found in the Interview Survey data tapes. In addition, the Detailed Expenditure Files include family characteristics (FMLY) files and income and member characteristics (MEMB) files identical to those found in the Interview Survey.

The Annual Social and Economic (ASEC) 2025 Supplement is part of the Current Population Survey (CPS) Series. The CPS is a source of official Government statistics on employment and unemployment. The Census Bureau conducts the ASEC (known as the Annual Demographic File prior to 2003) over a three-month period, in February, March, and April, with most of the data collected in the month of March. The ASEC uses two sets of survey questions, the basic CPS and a set of supplemental questions.

The CPS, administered monthly, is a labor force survey providing current estimates of the economic status and activities of the population of the United States. Specifically, the CPS provides estimates of total employment (both farm and nonfarm), nonfarm self-employed persons, domestics, and unpaid helpers in nonfarm family enterprises, wage, and salaried employees, and estimates of total unemployment.

In addition to the basic CPS questions, respondents were asked questions from the ASEC, which provides supplemental data on poverty, geographic mobility/migration, and work experience. Comprehensive work experience information was given on the employment status, occupation, and industry of persons aged 15 and over. Additional data for persons aged 15 and older were available concerning weeks worked and hours per week worked, reason not working full-time, total income and supplemental income components. Demographic variables include age, sex, race, Hispanic origin, marital status, veteran status, educational attainment, occupation, and income. Data on employment and income refer to the previous calendar year, although demographic data refer to the time of the survey.

The occupation and industry information variables in this data collection can help the data users identify individuals who worked in arts and culture related fields. The occupations are listed in a category entitled "Arts, Design, Entertainment, Sports, and Media Occupations," which includes professions such as artists, designers, actors, musicians, and writers (see Appendix B of the User's Guide for further category details). Industries related to the arts and culture are in the "Arts, Entertainment, and Recreation" category (see Appendix A of the User's Guide for further category details). For example, using the occupation and industry information variables from the ASEC help data users to obtain statistics about people in artists' occupations that receive supplemental income, live public housing, or are full-time students.

The ASEC data provided by the Census Bureau are distributed in a hierarchical file structure, with three record types present: Household, Family, and Person. The ASEC is designed to be a multistage stratified sample of housing units, where the hierarchical file structure can be thought of as a person within a family within a household unit. Here the main unit of analysis is the household unit.

The longitudinal Monitoring the Future (MTF) Panel study extends the work of the cross-sectional MTF Main study by following a subsample of graduating seniors through the entire adult life course. The selected respondents are surveyed every two years from ages 19-30. Starting at age 35, respondents are surveyed every five years, at ages 35, 40, 45, 50, 55, and 60 (FZ surveys). The FZ surveys cover many of the same topics as the 12th grade and follow-up surveys and include additional questions on life events and health.

This study contains only the survey data for age 60 for the MTF longitudinal panel study participants that have reached age 60 (FZ6) through the 2021 data collection.

NOTE: Users must also request the core panel data file: MTF: Base Year and Follow-Up Core Panel Data, Ages 18-30, 1976-2021 (ICPSR 39223) because demographic information (e.g. sex, race/ethnicity) for the participants of the age 60 survey is included in the core panel data file.

Researchers can merge the Age 60 study data file with other MTF follow-up data in this series. This includes:

• MTF: Base Year and Follow-Up Core Data, Ages 18-30, 1976-2021 (ICPSR 39223)
• MTF: Base Year and Follow-Up Form 1 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39282)
• MTF: Base Year and Follow-Up Form 2 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39325)
• MTF: Base Year and Follow-Up Form 3 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39389)
• MTF: Base Year and Follow-Up Form 4 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39326)
• MTF: Base Year and Follow-Up Form 5 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39283)
• MTF: Base Year and Follow-Up Form 6 Panel Data, Ages 18-30, 1989-2021 (ICPSR 39388)
• MTF: Age 35 Panel Data, 1993-2021 [Restricted-Use] (ICPSR 39749)
• MTF: Age 40 and 45 Panel Data, 1998-2021 [Restricted-Use] (ICPSR 39767)
• MTF: Ages 50 and 55 Panel Data, 2008-2021 [Restricted-Use] (ICPSR 39804)

In addition to questions about lifetime, annual, and 30-day substance use, the Age 60 (FZ6) survey also includes questions covering:

• Substance use and its consequences (alcohol, marijuana/cannabis, other illicit drugs, substance use disorder symptoms)
• Methods of marijuana/cannabis use
• Own attitudes and perceptions about substance use
• Living arrangements and household characteristics
• Dating, marriage, and significant relationships
• Family roles, obligations, burdens, emotional support
• Employment/retirement
• Income, financial security, satisfaction
• Community involvement, social issues
• Local and global concerns
• Political interest and preferences
• Happiness; satisfaction with life domains and self
• Psychosocial constructs: self-esteem, locus of control, loneliness, risk-taking, boredom
• Health symptoms and illnesses, healthy behaviors, COVID-19, medical treatments

Please see the study documentation available on the MTF Panel series page for question-specific details, including content areas included in all survey forms.

HIGHLIGHTS of this update:

• Missing data coding has been changed/simplified in this release. Please see the User Guide for details.
• Panel analysis weights are now included in the data file instead of a stand-alone file. Please see the updated documentation for information.

Please be alert for variable coding differences between paper and web survey versions, especially for questions skipped based on answers to other questions. Note the following:

• The web-based version of the survey was introduced in 2020.
• Paper vs. Web coding differences will be most noticeable for the questions related to substance use, relationship/marital status, employment, and family composition.
• Users will need to explore their data using V60035 (89940:FZ PAPER OR WEB - RESPONSE) to look for and understand any coding differences.

Extensive work has been done to document the history and use of the MTF substance use disorder questions and criteria. Please see Substance use disorder criteria sums in the Monitoring the Future Panel Study (Occasional Paper No. 101).

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The longitudinal MTF Panel study extends the work of the cross-sectional MTF Main study by following a subsample of graduating seniors through the entire adult life course. The selected respondents are surveyed every two years from ages 19-30. Starting at age 35, respondents are surveyed every five years, at ages 35, 40, 45, 50, 55, and 60 (FZ surveys). The FZ surveys cover many of the same topics as the 12th grade and follow-up surveys and include additional questions on life events and health.

This study contains only the survey data for ages 50 and 55 for the MTF longitudinal panel study participants that have reached age 50 (FZ4) and/or age 55 (FZ5) through the 2021 data collection.

NOTE: Users must also request the core panel data file: MTF: Base Year and Follow-Up Core Panel Data, Ages 18-30, 1976-2021 (ICPSR 39223) because demographic information (e.g. sex, race/ethnicity) for the participants of the age 50 and 55 surveys is included in the core panel data file.

Researchers can merge the Age 50-55 study data file with other MTF follow-up data in this series. This includes:

• MTF: Base Year and Follow-Up Core Data, Ages 18-30, 1976-2021 (ICPSR 39223)
• MTF: Base Year and Follow-Up Form 1 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39282)
• MTF: Base Year and Follow-Up Form 2 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39325)
• MTF: Base Year and Follow-Up Form 3 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39389)
• MTF: Base Year and Follow-Up Form 4 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39326)
• MTF: Base Year and Follow-Up Form 5 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39283)
• MTF: Base Year and Follow-Up Form 6 Panel Data, Ages 18-30, 1989-2021 (ICPSR 39388)
• MTF: Age 35 Panel Data, 1993-2021 [Restricted-Use] (ICPSR 39749)
• MTF: Ages 40 and 45 Panel Data, 1998-2021 [Restricted-Use] (ICPSR 39767)
• MTF: Age 60 Panel Data, 2018-2021 [Restricted-Use] (ICPSR 39779)

In addition to questions about lifetime, annual, and 30-day substance use, the Age 50 (FZ4) and Age 55 (FZ5) surveys also includes questions covering:

• Substance use and its consequences (alcohol, marijuana/cannabis, other illicit drugs, substance use disorder symptoms)
• Methods of marijuana/cannabis use
• Own attitudes and perceptions about substance use
• Living arrangements and household characteristics
• Dating, marriage, and significant relationships
• Family roles, obligations, burdens, emotional support
• Employment: income, financial security, satisfaction
• Community involvement, social issues
• Local and global concerns
• Political interest and preferences
• Happiness; satisfaction with life domains and self
• Psychosocial constructs: self-esteem, locus of control, loneliness, risk-taking, boredom
• Health symptoms and illnesses, healthy behaviors, COVID-19, medical treatments

Please see the study documentation available on the MTF Panel series page for question-specific details, including content areas included in all survey forms.

HIGHLIGHTS of this update:

• Missing data coding has been changed/simplified in this release. Please see the User Guide for details.
• Panel analysis weights are now included in the data file instead of a stand-alone file. Please see the updated documentation for information.

Please be alert for variable coding differences between paper and web survey versions, especially for questions skipped based on answers to other questions. Note the following:

• The web-based version of the survey was introduced in 2020.
• Paper vs. Web coding differences will be most noticeable for the questions related to substance use, relationship/marital status, employment, and family composition.
• Users will need to explore their data using V50035/V55035 (89940:FZ PAPER OR WEB - RESPONSE) to look for and understand any coding differences

Extensive work has been done to document the history and use of the MTF substance use disorder questions and criteria. Please see Substance use disorder criteria sums in the Monitoring the Future Panel Study (Occasional Paper No. 101).

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The longitudinal Monitoring the Future (MTF) Panel study extends the work of the cross-sectional MTF Main study by following a subsample of graduating seniors through the entire adult life course. The selected respondents are surveyed every two years from ages 19-30. Starting at age 35, respondents are surveyed every five years, at ages 35, 40, 45, 50, 55, and 60 (FZ surveys). The FZ surveys cover many of the same topics as the 12th grade and follow-up surveys and include additional questions on life events and health.

This study contains only the age 35 survey data for the MTF longitudinal panel study participants that have reached age 35 (FZ1) through the 2021 data collection.

NOTE: Users must also request the core panel data file: MTF: Base Year and Follow-Up Core Panel Data, Ages 18-30, 1976-2021 (ICPSR 39223) because demographic information (e.g. sex, race/ethnicity) for the participants of the age 35 survey is included in the core panel data file.

Researchers can merge the Age 35 (FZ1) study data file with other MTF follow-up data in this series. This includes:

• MTF: Base Year and Follow-Up Core Data, Ages 18-30, 1976-2021 (ICPSR 39223)
• MTF: Base Year and Follow-Up Form 1 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39282)
• MTF: Base Year and Follow-Up Form 2 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39325)
• MTF: Base Year and Follow-Up Form 3 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39389)
• MTF: Base Year and Follow-Up Form 4 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39326)
• MTF: Base Year and Follow-Up Form 5 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39283)
• MTF: Base Year and Follow-Up Form 6 Panel Data, Ages 18-30, 1989-2021 (ICPSR 39388)
• MTF: Age 40-45 Panel Data, 1998-2021 [Restricted-Use] (ICPSR 39767)
• Forthcoming: MTF Panel Data for Ages 50-55, and 60

In addition to questions about lifetime, annual, and 30-day substance use, the Age 35 (FZ1) survey also includes questions covering:

• Substance use and its consequences (alcohol, marijuana/cannabis, other illicit drugs, substance use disorder symptoms)
• Methods of marijuana/cannabis use
• Own attitudes and perceptions about substance use
• Living arrangements and household characteristics
• Dating, marriage, and significant relationships
• Parenthood and family
• Employment: experiences, income, financial security, satisfaction
• Leisure time
• Local and global concerns
• Political interest and preferences
• Happiness; satisfaction with life domains and self
• Psychosocial constructs: self-esteem, locus of control, loneliness, risk-taking, boredom
• Health symptoms, healthy behaviors, COVID-19

Please see the study documentation available on the MTF Panel series page for question-specific details, including content areas included in all survey forms.

HIGHLIGHTS of this update:

• Missing data coding has been changed/simplified in this release. Please see the User Guide for details.
• Panel analysis weights are now included in the data file instead of a stand-alone file. Please see the updated documentation for information.

Please be alert for variable coding differences between paper and web survey versions, especially for questions skipped based on answers to other questions. Note the following:

• The web-based version of the survey was introduced in 2020.
• Paper vs. Web coding differences will be most noticeable for the questions related to substance use, relationship/marital status, employment, and family composition.
• Users will need to explore their data using V35035 (89940:FZ PAPER OR WEB - RESPONSE) to look for and understand any coding differences.

Extensive work has been done to document the history and use of the MTF substance use disorder questions and criteria. Please see Substance use disorder criteria sums in the Monitoring the Future Panel Study (Occasional Paper No. 101)

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The longitudinal Monitoring the Future (MTF) Panel study extends the work of the cross-sectional MTF Main study by following a subsample of graduating seniors through the entire adult life course. The selected respondents are surveyed every two years from ages 19-30. Starting at age 35, respondents are surveyed every five years, at ages 35, 40, 45, 50, 55, and 60 (FZ surveys). The FZ surveys cover many of the same topics as the 12th grade and follow-up surveys and include additional questions on life events and health.

This study contains only the survey data for ages 40 and 45 for the MTF longitudinal panel study participants that have reached age 40 (FZ2) and/or age 45 (FZ3) through the 2021 data collection.

NOTE: Users must also request the core panel data file: MTF: Base Year and Follow-Up Core Panel Data, Ages 18-30, 1976-2021 (ICPSR 39223) because demographic information (e.g. sex, race/ethnicity) for the participants of the age 40 and 45 surveys is included in the core panel data file.

Researchers can merge the Age 40-45 study data file with other MTF follow-up data in this series. This includes:

• MTF: Base Year and Follow-Up Core Data, Ages 18-30, 1976-2021 (ICPSR 39223)
• MTF: Base Year and Follow-Up Form 1 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39282)
• MTF: Base Year and Follow-Up Form 2 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39325)
• MTF: Base Year and Follow-Up Form 3 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39389)
• MTF: Base Year and Follow-Up Form 4 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39326)
• MTF: Base Year and Follow-Up Form 5 Panel Data, Ages 18-30, 1976-2021 (ICPSR 39283)
• MTF: Base Year and Follow-Up Form 6 Panel Data, Ages 18-30, 1989-2021 (ICPSR 39388)
• MTF: Age 35 Panel Data, 1993-2021 [Restricted-Use] (ICPSR 39749)
• Forthcoming: MTF panel data for ages, 50-55, and 60

In addition to questions about lifetime, annual, and 30-day substance use, the Age 40 (FZ2) and Age 45 (FZ3) surveys also includes questions covering:

• Substance use and its consequences (alcohol, marijuana/cannabis, other illicit drugs, substance use disorder symptoms)
• Methods of marijuana/cannabis use
• Own attitudes and perceptions about substance use
• Living arrangements and household characteristics
• Dating, marriage, and significant relationships
• Family roles, obligations, burdens
• Employment: experiences, income, financial security, satisfaction
• Leisure time
• Local and global concerns
• Political interest and preferences
• Happiness; satisfaction with life domains and self
• Psychosocial constructs: self-esteem, locus of control, loneliness, risk-taking, boredom
• Health symptoms and illnesses, healthy behaviors, COVID-19

Please see the study documentation available on the MTF Panel series page for question-specific details, including content areas included in all survey forms.

HIGHLIGHTS of this update:

• Missing data coding has been changed/simplified in this release. Please see the User Guide for details.
• Panel analysis weights are now included in the data file instead of a stand-alone file. Please see the updated documentation for information.

Please be alert for variable coding differences between paper and web survey versions, especially for questions skipped based on answers to other questions. Note the following:

• The web-based version of the survey was introduced in 2020.
• Paper vs. Web coding differences will be most noticeable for the questions related to substance use, relationship/marital status, employment, and family composition.
• Users will need to explore their data using V40035/V45035 (89940:FZ PAPER OR WEB - RESPONSE) to look for and understand any coding differences.

Extensive work has been done to document the history and use of the MTF substance use disorder questions and criteria. Please see Substance use disorder criteria sums in the Monitoring the Future Panel Study (Occasional Paper No. 101)

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The National Prisoner Statistics (NPS) data collection began in 1926 in response to a congressional mandate to gather information on persons incarcerated in state and federal prisons. Originally under the auspices of the U.S. Census Bureau, the collection moved to the Bureau of Prisons in 1950, and then in 1971 to the National Criminal Justice Information and Statistics Service, the precursor to the Bureau of Justice Statistics (BJS) which was established in 1979. From 1979 to 2013, the Census Bureau was the NPS data collection agent. In 2014, the collection was competitively bid in conjunction with the National Corrections Reporting Program (NCRP), since many of the respondents for NPS and NCRP are the same. The contract was awarded to Abt Associates, Inc.

The NPS is administered to 51 respondents. Before 2001, the District of Columbia was also a respondent, but responsibility for housing the District of Columbia's sentenced prisoners was transferred to the Federal Bureau of Prisons, and by yearend 2001 the District of Columbia no longer operated a prison system.

The NPS provides an enumeration of persons in state and federal prisons and collects data on key characteristics of the nation's prison population. NPS has been adapted over time to keep pace with the changing information needs of the public, researchers, and federal, state, and local governments.

These are the third and fourth waves of the PREHCO project (Puerto Rican Elder Health Conditions study) and have been developed between 2021 and 2024 as a collaboration between the University of Alabama at Birmingham and the University of Puerto Rico. The project began as a cross-sectional study of the non-institutionalized population aged 60 years or older in Puerto Rico. These waves followed the survivors of the original participants at the beginning of the fieldwork and aimed to examine the predictors of cognitive decline, disability, and mortality. The fourth wave of this study extends the follow-up of PREHCO to between 21 and 22 years after the initial data collection and aims to examine the predictors of cognitive decline, disability, and mortality.

PREHCO was designed as a study comparable to the Multicenter Project on Health and Well-being of Older Adults in Latin America and the Caribbean (SABE) developed by the Pan American Health Organization (PAHO) in several cities in Latin America, and with some studies carried out in the United States, mainly the Health and Retirement Study (HRS).

For this purpose, a questionnaire was designed that included sections on health conditions, physical and mental disability, functionality, use of medicines, health needs and social services, access to and use of health services, abuse, migration, housing conditions, patterns of help from family, community and public and government agencies, and others.

Since its inception, PREHCO has been funded with federal funds from the National Institute on Aging (NIA). Initially it was a project between the University of Wisconsin-Madison and the University of Puerto Rico from 2000-2009.

The Consumer Expenditure Survey (CE) program consists of two surveys: the quarterly Interview survey and the annual Diary survey. Combined, these two surveys provide information on the buying habits of American consumers, including data on their expenditures, income, and consumer unit (families and single consumers) characteristics. The survey data are collected for the U.S. Bureau of Labor Statistics (BLS) by the U.S. Census Bureau. The CE collects all on all spending components including food, housing, apparel and services, transportation, entertainment, and out-of-pocket health care costs.

The CE tables are an easy-to-use tool for obtaining arts-related spending estimates. They feature several arts-related spending categories, including the following items:

Spending on Admissions

• Plays, theater, opera, and concerts
• Movies, parks, and museums

Spending on Reading

• Newspapers and magazines
• Books
• Digital book readers

Spending on Other Arts-Related Items

• Musical instruments
• Photographic equipment
• Audio-visual equipment
• Toys, games, arts and crafts

The CE is important because it is the only Federal survey to provide information on the complete range of consumers' expenditures and incomes, as well as the characteristics of those consumers. It is used by economic policymakers examining the impact of policy changes on economic groups, by the Census Bureau as the source of thresholds for the Supplemental Poverty Measure, by businesses and academic researchers studying consumers' spending habits and trends, by other Federal agencies, and, perhaps most importantly, to regularly revise the Consumer Price Index market basket of goods and services and their relative importance.

The most recent data tables are for 2024 and include: 1) Detailed tables with the most granular level of expenditure data available, along with variances and percent reporting for each expenditure item, for all consumer units (listed as "Other" in the Download menu); and 2) Tables with calendar year aggregate shares by demographic characteristics that provide annual aggregate expenditures and shares across demographic groups (listed as "Excel" in the Download menu).

Also, see Featured CE Tables and Economic News Releases sections on the CE home page for current data tables and news release. The 1980 through 2024 CE public-use microdata, including Interview Survey data, Diary Survey data, and paradata (information about the data collection process), are available on the CE website.

This data collection is part of the Monitoring the Future series that explores changes in important values, behaviors, and lifestyle orientations of contemporary American youth in eighth, tenth, and twelfth grades. The restricted data sets in this collection include variables that were altered or omitted from the public use data sets to maintain respondent confidentiality. Examples of variables included in their original form are: unaltered sampling weight variable, variables for strata and cluster to account for the complex sample design of the MTF, and previously-omitted data on some variables for the Western region of the US. For each year from 1976 through 2017, two data sets containing data for all three grades are available: one dataset including school-level state, county, and Zip Code variables, and one dataset without these geographic school-level variables. For 2018-2022, data sets were created separately for 8th/10th and 12th grades, resulting in four data sets. This split on grade was done to mirror the data availability of the public use files and facilitate the merging of the public and restricted use data. For 2023 forward, only two data sets are provided: one for the 8th and 10th grades, and one for the 12th grade. Please note: Use of the geographic identifiers such as state, county, or zip code is limited and researchers interested in these variables are encouraged to read FAQs: About MTF Restricted-Use Geographic Variables.

Also included as part of each annual collection is a zip archive of the Monitoring the Future public-use data and documentation for each respective year. The basic research design used by the Monitoring the Future study involves annual data collections from eighth, tenth, and twelfth graders throughout the contiguous United States during the spring of each year. The 8th/10th grade surveys consist of four different questionnaire forms (two forms from 1991-1996), and the 12th grade surveys consist of six questionnaire forms (five forms from 1976-1988). Identical forms are used for both eighth and tenth grades, and for the most part, questionnaire content is drawn from the twelfth-grade questionnaires. Thus, key demographic variables and measures of substance use and related attitudes and beliefs are generally identical for all three grades. However, many fewer questions about lifestyles and values are included in the 8th/10th grade surveys. Substance use covered by these surveys includes tobacco, smokeless tobacco, alcohol, marijuana/cannabis, prescription medications, over-the-counter medications, inhalants, steroids, LSD and other hallucinogens, amphetamines (stimulants), sedatives/barbiturates, tranquilizers, cocaine, crack cocaine, ecstasy, methamphetamine, heroin, narcotics other than heroin, and vaping of nicotine, marijuana/cannabis, and flavors. Other topics include: attitudes toward religion, changing roles for women, educational aspirations, self-esteem, exposure to drug education, and violence and crime (both in and out of school).

This dataset contains measures of essential workers at the census tract and ZIP Code Tabulation Area (ZCTA) levels in the United States for the years 2018-2022. The unit of analysis is geographic areas defined by Census Tract 2020 and ZCTA 2020 boundaries. Variables include total counts of essential workers and the proportion of essential workers within the civilian employed population aged 16 and older in each tract and ZCTA. The data are based on American Community Survey (ACS) five-year estimates for 2019-2023 and use essential worker designations from the American Civil Liberties Union (ACLU) classification aligned with Standard Occupational Classification codes.

This dataset contains annual measures of training and vocational schools in the United States from 1990 through 2022. The data include counts, per capita densities, area densities, and employment figures for twelve categories of training and vocational establishments: business and secretarial schools, data processing schools, general educational services, beauty schools and barber colleges, vocational schools, dance schools, instruction schools and camps, arts and crafts schools, music and drama schools, vehicle driving schools, reading and speaking schools, and personal development schools.

The unit of analysis is either the Census Tract or ZIP Code Tabulation Area (ZCTA), with separate files standardized to 2010 Census Tract boundaries, 2020 Census Tract boundaries, 2010 ZCTA boundaries, and 2020 ZCTA boundaries. Each file covers all census tracts or ZCTAs in the fifty United States, including Alaska, Hawaii, and US island territories.

Business establishment data were drawn from the National Establishment Time Series (NETS) database, which was cleaned and geocoded to Census Bureau TIGER/Line shapefiles. Population denominators came from the American Community Survey and Decennial Census. The data cleaning protocol addressed known NETS limitations by re-geocoding addresses, standardizing SIC codes across time, collapsing duplicate records, and removing businesses located at residential addresses using Zillow's ZTRAX data.

Key variables include count (e.g., count_businesscho), per capita density per 1000 population (e.g., den_datascho), area density per square mile (e.g., aden_vocationscho), and total employment (e.g., emps_beautyscho) for each establishment category. The Census Tract 2020 dataset includes both tract_fips20 and tract_fips22 variables to accommodate Connecticut's 2022 county boundary changes.

This data collection is part of the Monitoring the Future series that explores changes in important values, behaviors, and lifestyle orientations of contemporary American youth in eighth, tenth, and twelfth grades. The restricted data sets in this collection include variables that were altered or omitted from the public use data sets to maintain respondent confidentiality. Examples of variables included in their original form are: unaltered sampling weight variable, variables for strata and cluster to account for the complex sample design of the MTF, and previously-omitted data on some variables for the Western region of the US. For each year from 1976 through 2017, two data sets containing data for all three grades are available: one dataset including school-level state, county, and Zip Code variables, and one dataset without these geographic school-level variables. Beginning with 2018, data sets were created separately for 8th/10th and 12th grades, resulting in four data sets. This split on grade was done to mirror the data availability of the public use files and facilitate the merging of the public and restricted use data. Please note: Use of the geographic identifiers such as state, county, or zip code is limited and researchers interested in these variables are encouraged to read FAQs: Monitoring the Future Restricted-Use Geographic Variables.

Also included as part of each annual collection is a zip archive of the Monitoring the Future public-use data and documentation for each respective year. The basic research design used by the Monitoring the Future study involves annual data collections from eighth, tenth, and twelfth graders throughout the coterminous United States during the spring of each year. The 8th/10th grade surveys consist of four different questionnaire forms (two forms from 1991-1996) and the 12th grade surveys consist of six questionnaire forms (five forms from 1976-1988). Identical forms are used for both eighth and tenth grades, and for the most part, questionnaire content is drawn from the twelfth-grade questionnaires. Thus, key demographic variables and measures of drug use and related attitudes and beliefs are generally identical for all three grades. However, many fewer questions about lifestyles and values are included in the 8th/10th grade surveys. Drugs covered by these surveys include tobacco, smokeless tobacco, alcohol, marijuana, hashish, prescription medications, over-the-counter medications, inhalants, steroids, LSD, hallucinogens, amphetamines (stimulants), Ritalin (methylphenidate), sedatives/barbiturates, tranquilizers, cocaine, crack cocaine, ecstasy, methamphetamine, heroin, and GHB (gamma hydroxy butyrate). Other topics include: attitudes toward religion, changing roles for women, educational aspirations, self-esteem, exposure to drug education, and violence and crime (both in and out of school).

UPDATE NOVEMBER 2025: There is an issue with merging the restricted-use and public-use data files for the 8th/10th grades. The current 8th/10th grade public-use data file [study 38883, DS1] has incorrect Archive IDs (AI_08 and AI_10). To fix the IDs so the merge of public- and restricted-use data is correct, please see Dataset 6 (DS6) in this study. Documentation is provided about the issue and a dataset is provided to fix the ID mis-match. Note that all survey data are correct - the problem is only with the archive ID variables.

This data collection is part of the Monitoring the Future series that explores changes in important values, behaviors, and lifestyle orientations of contemporary American youth in eighth, tenth, and twelfth grades. The restricted data sets in this collection include variables that were altered or omitted from the public use data sets to maintain respondent confidentiality. Examples of variables included in their original form are: unaltered sampling weight variable, variables for strata and cluster to account for the complex sample design of the MTF, and previously-omitted data on some variables for the Western region of the US. For each year from 1976 through 2017, two data sets containing data for all three grades are available: one dataset including school-level state, county, and Zip Code variables, and one dataset without these geographic school-level variables. Beginning with 2018, data sets were created separately for 8th/10th and 12th grades, resulting in four data sets. This split on grade was done to mirror the data availability of the public use files and facilitate the merging of the public and restricted use data. Please note: Use of the geographic identifiers such as state, county, or zip code is limited and researchers interested in these variables are encouraged to read FAQs: Monitoring the Future Restricted-Use Geographic Variables.

Also included as part of each annual collection is a zip archive of the Monitoring the Future public-use data and documentation for each respective year. The basic research design used by the Monitoring the Future study involves annual data collections from eighth, tenth, and twelfth graders throughout the coterminous United States during the spring of each year. The 8th/10th grade surveys consist of four different questionnaire forms (two forms from 1991-1996) and the 12th grade surveys consist of six questionnaire forms (five forms from 1976-1988). Identical forms are used for both eighth and tenth grades, and for the most part, questionnaire content is drawn from the twelfth-grade questionnaires. Thus, key demographic variables and measures of drug use and related attitudes and beliefs are generally identical for all three grades. However, many fewer questions about lifestyles and values are included in the 8th/10th grade surveys. Drugs covered by these surveys include tobacco, smokeless tobacco, alcohol, marijuana, hashish, prescription medications, over-the-counter medications, inhalants, steroids, LSD, hallucinogens, amphetamines (stimulants), Ritalin (methylphenidate), sedatives/barbiturates, tranquilizers, cocaine, crack cocaine, ecstasy, methamphetamine, heroin, and GHB (gamma hydroxy butyrate). Other topics include: attitudes toward religion, changing roles for women, educational aspirations, self-esteem, exposure to drug education, and violence and crime (both in and out of school).

UPDATE OCTOBER 2025: There is a problem with merging the restricted-use and public-use data files for the 8th/10th grades. The current 8th/10th grade public-use data file [study 39171, DS1] has incorrect Archive IDs (AI_08 and AI_10). To fix the IDs so the merge of public- and restricted-use data is correct, please see Dataset 4 (DS4) in this study. Documentation is provided about the issue, and a dataset is provided to fix the ID mis-match. Note that all survey data are correct - the problem is only with the archive ID variables.

This survey of 12th-grade students is part of a series that explores changes in important values, behaviors, and lifestyle orientations of contemporary American youth. Students are randomly assigned to complete one of six questionnaires, each with a different subset of topical questions, but all containing a set of "core" questions on demographics and substance use. There are about 1,400 variables across the six questionnaires. Substance use covered by these surveys includes tobacco, smokeless tobacco, alcohol, marijuana/cannabis, prescription medications, over-the-counter medications, inhalants, steroids, LSD and other hallucinogens, amphetamines (stimulants), sedatives/barbiturates, tranquilizers, cocaine, crack cocaine, ecstasy, methamphetamine, heroin, narcotics other than heroin, and vaping of nicotine, marijuana/cannabis, and flavors. Other topics include attitudes toward religion, changing roles for women, educational aspirations, self-esteem, exposure to drug education, and violence and crime (both in and out of school).

Highlights for 2024:

• The MTF sampling procedure was updated in 2024. Please see the 2024 MTF annual report for details. Variable-specific details are found in the user's guide that accompanies this study.
• Continuation of randomized blocks of questions presented to students. Please see Appendix D of the user's guide.
• In 2023, the question about use of Delta-8 THC was included only on forms 3 and 6. In 2024, this question is now included on all survey forms. With the inclusion on all forms, please note these variable name changes:
  • CORE: V2934 was changed to V7976
  • Form 3: V3660 was changed to V7976
  • Form 6: V6676 was changed to V7976
• Changes were made to the question stems for many of the substance use "triplets", i.e. lifetime, 12 month, and 30 day timeframes, including: marijuana/cannabis, hallucinogens other than LSD, amphetamines (stimulants), sedatives/barbiturates, tranquilizers, and narcotics other than heroin.
• Additional information about question text and response option changes, along with details about added and dropped questions, are documented in the MTFQchanges2024byForm.pdf and MTFQchanges2024byType.pdf files available for download.
• MTF is no longer providing dichotomized substance use variables on the DS1 datasets. As each researcher has their own method of working with data, it is up to the researcher to create these variables for their specific needs.

These surveys of 8th- and 10th-grade students are part of a series that explores changes in important values, behaviors, and lifestyle orientations of contemporary American youth. Students in each grade are randomly assigned to complete one of four questionnaires, each with a different subset of topical questions but containing a set of "core" questions on demographics and substance use. There are more than 450 variables across the questionnaires. Substance use covered by this survey includes: amphetamines (stimulants), sedatives/barbiturates (tranquilizers), other prescription drugs, over-the-counter medications, vaping, tobacco, smokeless tobacco, alcohol, inhalants, steroids, marijuana, hashish, LSD, hallucinogens, cocaine, crack, ecstasy, methamphetamine, and injectable drugs such as heroin.

Highlights for 2024:

• The MTF sampling procedure was updated in 2024. Please see the 2024 MTF annual report for details. Variable-specific details are found in the user's guide that accompanies this study.
• Changes were made to the question stems for many of the substance use "triplets", i.e. lifetime, 12-month, and 30-day timeframes, including: marijuana/cannabis, hallucinogens other than LSD, amphetamines (stimulants), sedatives/barbiturates, tranquilizers, and narcotics other than heroin. Additional information about question text and response option changes, along with details about added and dropped questions, are documented in the MTFQchanges2024byForm.pdf and MTFQchanges2024byType.pdf files available for download.
• MTF is no longer providing dichotomized substance use variables on the DS1 datasets. As each researcher has their own method of working with data, it is up to the researcher to create these variables for their specific needs.

These datasets contain measures of socioeconomic and demographic characteristics by U.S. census tract for the years 1990-2022 and ZIP code tabulation area (ZCTA) for the years 2008-2022. Example measures include population density; population distribution by race, ethnicity, age, and income; income inequality by race and ethnicity; and proportion of population living below the poverty level, receiving public assistance, and female-headed or single parent families with kids. The datasets also contain a set of theoretically derived measures capturing neighborhood socioeconomic disadvantage and affluence, as well as a neighborhood index of Hispanic, foreign born, and limited English.

This data collection contains the results of a follow-up cross-sectional study to the 2016 assessment of the current campus climate with respect to diversity, equity, and inclusion. The sample survey of the University of Michigan (U-M), Ann Arbor, faculty, staff, and students was meant to represent the full diversity of the community and to capture information and perceptions on demographics, climate, institutional commitment and inclusive and equitable treatment, departmental norms, intergroup interactions, and discrimination. With input from committees of students, faculty, and staff, the survey instrument was developed collaboratively by the U-M Office of the Provost, U-M's Survey Research Center, and administered by SoundRocket, an external social science survey research company. The instrument was delivered as a web survey, and several notifications and reminders were used to encourage completion, as well as an incentive. These notifications and reminders were delivered in phases.

Variables in the collection describe age, gender and gender identity, race/ethnicity, school/department/unit, religious affiliation, disability status, campus safety, rating of campus climate, intergroup interaction, discriminatory events, composite rating scores, and more.

Surveillance data play a vital role in estimating the burden of diseases, pathogens, exposures, behaviors, and susceptibility in populations, providing insights that can inform the design of policies and targeted public health interventions. The use of Health and Demographic Surveillance System (HDSS) collected from the Kilifi region of Kenya, has led to the collection of massive amounts of data on the demographics and health events of different populations. This has necessitated the adoption of tools and techniques to enhance data analysis to derive insights that will improve the accuracy and efficiency of decision-making. Machine Learning (ML) and artificial intelligence (AI) based techniques are promising for extracting insights from HDSS data, given their ability to capture complex relationships and interactions in data. However, broad utilization of HDSS datasets using AI/ML is currently challenging as most of these datasets are not AI-ready due to factors that include, but are not limited to, regulatory concerns around privacy and confidentiality, heterogeneity in data laws across countries limiting the accessibility of data, and a lack of sufficient datasets for training AI/ML models. Synthetic data generation offers a potential strategy to enhance accessibility of datasets by creating synthetic datasets that uphold privacy and confidentiality, suitable for training AI/ML models and can also augment existing AI datasets used to train the AI/ML models. These synthetic datasets, generated from two rounds of separate data collection periods, represent a version of the real data while retaining the relationships inherent in the data. For more information please visit The Aga Khan University Website.

The Monitoring the Future (MTF) project is a long-term epidemiologic and etiologic study of substance use among youth and adults in the United States. It is conducted at the University of Michigan's Institute for Social Research and is funded by a series of investigator-initiated research grants from the National Institute on Drug Abuse.

The MTF panel study consists of six different survey forms (five forms from 1976-1988), and each survey contains a "core" set of questions about demographics and substance use. This study contains the "core" data for these questions compiled across all survey forms and years in which they are included for the longitudinal panel participants. Each record in the core panel dataset includes the respondent's data for their base year (BY) 12th grade survey (modal age 18) and their young adult follow-up FU surveys (modal ages 19-30).

The core panel dataset should be selected by all researchers. Use the linking variable available on all datasets, MTFID, to link the core dataset with all other MTF panel datasets.

Here is a list of subjects included in the core dataset:

Administrative variables

• Year of administration
• Survey form
• Survey date
• BY survey weight, sampling stratum and cluster
• FU panel analysis weights

Demographics

BY only

• #Parents in household
• Parent education levels
• Respondent's age in months
• Sex
• Race/Ethnicity
• Region of the country (school location)
• Population density/Urbanicity (school location)
• High school Zip Code, State and County FIPS codes (can be linked to user-provided data; results can be reported at no unit smaller than US geographical region)
• Absenteeism (illness, cutting, skipping class)
• High school program, Grades, post-high school plans

FU only

• Pregnancy status
• Household type
• Urbanicity
• Absenteeism (missing work due to illness, other)
• Vocational/Technical education, Armed forces, College attendance
• College grades, attendance, Greek life

BY and FU

• Marital status
• Household composition
• Political preference
• Religious attendance, importance, preference
• Evenings out, Dating
• Employment
• Salary/earned Income and Other Income
• Driving, tickets, and accidents related to alcohol and other substance use

Substance use

• Cigarette use
• Alcohol use (including binge drinking (e.g. 5+ drinks in a row/2 weeks), drunkenness)
• Marijuana/cannabis, hashish use
• LSD use
• Hallucinogen use, other than LSD
• Cocaine use (including cocaine, crack, other forms)
• Amphetamine use
• Sedatives/Barbiturate use
• Tranquilizer use
• Heroin use (with and without needles)
• Narcotics use (other than Heroin)
• Inhalant use
• Steroid use
• Ice use
• Methamphetamine use
• MDMA use
• Vaping: nicotine, marijuana, flavoring

Please see the study documentation available on the MTF Panel series page for question-specific details.

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The MTF study consists of six different survey forms (five forms from 1976-1988). This study contains the data for Form 4 longitudinal panel participants. The MTF Form 4 restricted panel dataset includes data for the base year (BY) 12th grade surveys (modal age 18) and their young adult follow-up FU surveys (modal ages 19-30).

In addition to demographic-related questions and questions about lifetime, annual, and 30-day substance use that are included on all survey forms, Form 4 also includes questions covering:

• Beer, Wine, hard liquor, wine coolers use
• Vaping sources
• Flavored, small, and large cigars
• Hookah, dissolvable tobacco, snus, and smokeless tobacco use
• Own attitudes and perceptions about substance use
• Perceived risk of substance use
• Perceived friends' substance use
• Perceived addictiveness of substances
• Legal Issues Regarding Drugs
• Delinquency, victimization, and feeling safe at school
• Vocational plans, aspirations, expectations
• Preferences regarding job characteristics
• Desirability of different working arrangements and settings
• Work ethic/success orientation
• Dating and marriage: status, attitudes, expectations
• Parenthood: attitudes, expectations
• Values surrounding marriage and family
• Personal materialism
• Ecological concerns, conservation of resources
• Attitudes toward governmental policies and practices
• Local and global concerns
• Voting behavior
• Attitudes toward the military as an institution and occupation
• Happiness; satisfaction with life domains and self

Please see the study documentation available on the MTF Panel series page for question-specific details.

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The MTF study consists of six different survey forms (forms 1-5 began in 1976; form 6 was added in 1989). This study contains the data for Form 6 longitudinal panel participants. The MTF Form 6 Panel dataset includes data for the base year (BY) 12th grade surveys (modal age 18) and their young adult follow-up FU surveys (modal ages 19-30).

In addition to demographic-related questions and questions about lifetime, annual, and 30-day substance use that are included on all survey forms (see the core panel listing), Form 6 also includes questions covering:

• Attitudes toward governmental policies and practices
• Attitudes towards discrimination
• Dating, marriage, and family
• Delinquency and victimization
• Expected future substance use
• Flavored alcohol, alcohol+caffeine
• Health behaviors, COVID-19
• High school: Delinquency, victimization, and feeling safe at school
• High school: scholastic status, objectives, experiences, activities
• Leisure time activities, high school and post-high school
• Methods of marijuana use
• Non-prescription substance use including Ritalin, Adderall, Oxycontin, Vicodin, Fentanyl
• Others' attitudes regarding drugs and drug users
• Own attitudes about substance use
• Perceived availability of substances
• Perceived risk of substance use
• Perception of others' substance use behaviors
• Psychosocial domains: boredom, loneliness, self-esteem, depressive affect, social support, self-efficacy, risk taking
• Reasons for non-use: crack, other cocaine
• Satisfaction with life
• Smokeless tobacco
• Substance use initiation
• Tobacco Promotional Activities

Please see the study documentation available on the MTF Panel series page for question-specific details, including content areas included in all survey forms.

NOTE: Researchers are encouraged to begin their work with the "core" data file, NAHDAP study 39223. Please see the User's Guide, section IV. Working with the MTF Restricted Panel Data, for details.

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The MTF study consists of six different survey forms (forms 1-5 began in 1976; form 6 was added in 1989). This study contains the data for Form 3 longitudinal panel participants. The MTF Form 3 Panel dataset includes data for the base year (BY) 12th grade surveys (modal age 18) and their young adult follow-up FU surveys (modal ages 19-30).

In addition to demographic-related questions and questions about lifetime, annual, and 30-day substance use that are included on all survey forms, Form 3 also includes questions covering:

• Attitudes toward governmental policies and practices
• Dating and marriage: status, attitudes, expectations
• Ecological concerns, conservation of resources
• Happiness; satisfaction with life domains and self
• Health symptoms, healthy behaviors, COVID-19
• Leisure time, including computer, cell phone, and social media use
• Local and global concerns
• Methods of marijuana use
• Own attitudes and perceptions about substance use
• Parenthood: attitudes, expectations
• Perceived friends' substance use
• Perceived risk of substance use
• Race relations
• Substance use consequences (alcohol, marijuana/cannabis, other illicit drugs)

NOTE: In 2020, school-based data collection was halted due to COVID-19. BY sample sizes were affected, and data for some questions on forms 2 and 3 were suppressed. The list of variables affected is found in the 2020 12th grade Codebook available through NAHDAP.

Please see the study documentation available on the MTF Panel series page for question-specific details, including content areas included in all survey forms.

NOTE: Researchers are encouraged to begin their work with the "core" data file, NAHDAP study 39223. Please see the User's Guide, IV. Working with the MTF Restricted Panel Data, for details.

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The National Congregations Study (NCS) is a national survey effort to gather information about America's congregations. The first wave of the NCS took place in 1998, and the study was repeated in 2006-07, 2012, and 2018-19. The NCS tracks continuity and change among American congregations, and each NCS wave also explores new subjects.

With information from 5,333 congregations collected over a span of more than 20 years, the NCS helps us better understand many aspects of congregational life in the United States, and how congregations are changing in the 21st century. The NCS contributes to knowledge about American religion by collecting information about a wide range of congregations' characteristics and activities at different points in time.

In all four waves, the NCS was conducted in conjunction with the General Social Survey (GSS). The 1998, 2006, 2012, and 2018 waves of the GSS asked respondents who attend religious services to name their congregation, thus generating a nationally representative sample of religious congregations. Researchers then located these congregations. In 2006, the sample included re-interviews of a subset of congregations that participated in 1998, and in 2018-19, the sample included re-interviews of a subset of congregations that participated in 2012.

A key informant at each congregation - a minister, priest, rabbi, or other staff person or leader - provided each congregation's information via a one-hour interview conducted either over the phone or in-person. The survey gathered information on many topics, including the congregation's leadership, social composition, structure, activities, and programming. The NCS gathers information about worship, programs, staffing, community activities, demographics, funding, and many other characteristics of American congregations. Respondents of the NCS survey were asked to describe the worship service and programs sponsored by the congregation other than the main worship services, including religious education classes, musical groups, and recreational programs. Informants described the type of building in which the congregation met, whether it belonged to the congregation, and whether visitors came just to view the building's architecture or artwork. Congregations were geocoded, and selected census variables are included in this study.

The American Community Survey (ACS), conducted by the U.S. Census Bureau, replaced the long form of the decennial census in 2000. The ACS allows researchers, policy makers, and others access to timely information about the U.S. population to make decisions about infrastructure and distribution of federal funds. The monthly survey is sent to a sample of approximately 3.5 million U.S. addresses, including the District of Columbia and Puerto Rico. The ACS includes questions on topics not included in the decennial census, such as those about occupations and employment, education, and key areas of infrastructure like internet access and transportation.

When studying large geographic areas, such as states, researchers can use a single year's worth of ACS data to create population-level estimates. However, the study of smaller groups of the population, such as those employed in arts-related fields, requires additional data for more accurate estimation. Specifically, researchers often use 5-year increments of ACS data to draw conclusions about smaller geographies or slices of the population. Note, the Census Bureau produced 3-year estimates between 2005 and 2013 (resulting in seven files: 2005-2007, 2006-2008, 2007-2009, . . . 2011-2013), which remain available but no additional 3-year estimate files have been created.

Individuals wishing to describe people working in occupations related to the arts or culture should plan to use at least five years' worth of data to generate precise estimates. When selecting data from the U.S. Census Bureau or IPUMS USA, users should select data collected over 60 months, such as 2020-2024. NADAC's Guide to Creating Artist Extracts and Special Tabulations of Artists from the American Community Survey provides information about the occupation codes used to identify artists.

The MTF study consists of six different survey forms (five forms from 1976-1988). This study contains the data for Form 2 longitudinal panel participants. The MTF Form 2 restricted panel dataset includes data for the base year (BY) 12th grade surveys (modal age 18) and their young adult follow-up FU surveys (modal ages 19-30).

In addition to demographic-related questions and questions about lifetime, annual, and 30-day substance use that are included on all survey forms, Form 2 also includes questions covering:

• Availability of drugs
• Confidence/trust in government
• Dating, marriage, and family
• Delinquency and victimization
• Expected future substance use
• Exposure to substance use
• Healthy behaviors, illness, COVID-19
• Leisure time activities, high school and post-high school
• Methods of marijuana use
• Military: plans for service, draft opinion
• Own attitudes and perceptions about substance use
• Perceived friends' substance use
• Perceived risk of substance use
• Psychosocial domains: boredom, loneliness, self-esteem, depressive affect, social support, self-efficacy, risk taking
• Satisfaction with life domains
• Sources of help and treatment for substance use
• Sources of marijuana
• Substance use initiation
• Vaping, including nicotine, marijuana, flavoring, sources
• Voting, political activism

NOTE: In 2020, school-based data collection was halted due to COVID-19. BY sample sizes were affected, and data for some questions on forms 2 and 3 were suppressed. The list of variables affected is found in the 2020 12th grade Codebook available through NAHDAP.

Please see the study documentation available on the MTF Panel series page for question-specific details , including content areas included in all survey forms.

NOTE: Researchers are encouraged to begin their work with the "core" data file, NAHDAP study 39223. Please see the User's Guide, IV. Working with the MTF Restricted Panel Data, for details.

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the MTF research team, describing the data collection and trends over time.

The Annual Survey of Jails (ASJ) is the only data collection effort that provides an annual source of data on local jails and jail inmates. Data on the size of the jail population and selected inmate characteristics are obtained every five to six years from the Census of Jails. In each of the years between the complete censuses, a sample survey of jails is conducted to estimate baseline characteristics of the nation's jails and inmates housed in these jails. The 2023 Annual Survey of Jails is the 35th such survey in a series begun in 1982.

The ASJ supplies data on characteristics of jails such as admissions and releases, growth in the number of jail facilities, changes in their rated capacities and level of occupancy, growth in the population supervised in the community, changes in methods of community supervision, and crowding issues. The ASJ also provides information on changes in the demographics of the jail population, supervision status of persons held, and a count of non-U.S. citizens in custody.

The data presented in this study were collected in the Annual Survey of Jails, 2023. These data are used to track growth in the number of jails and the capacities nationally, changes in the demographics of the jail population and supervision status of persons held, the prevalence of crowding issues, and a count of non-U.S. citizens within the jail population. The data are intended for a variety of users, including Federal and State agencies, local officials in conjunction with jail administrators, researchers, planners, and the public. The reference date for the survey is June 30, 2023.

The MTF study consists of six different survey forms (five forms from 1976-1988). This study contains the data for Form 1 longitudinal panel participants. The MTF Form 1 Panel dataset includes data for the base year (BY) 12th grade surveys (modal age 18) and their young adult follow-up FU surveys (modal ages 19-30).

In addition to demographic-related questions and questions about lifetime, annual, and 30-day substance use that are included on all survey forms, Form 1 also includes questions covering:

• incidence of first use
• co-use of substances
• sources of obtaining substances
• perceived friends' use
• perceived availability of substances
• when, where, and with who substance use is occurring
• modes of substance use administration
• reasons for use or non-use
• own attitudes about substance use
• perceived risk of use
• substance use advertising
• sources of help and treatment
• free time and activities
• role of citizens in government, confidence in government
• voting and political activism
• attitudes towards discrimination
• satisfaction with life domains
• healthy behaviors
• physical health symptoms

Please see the study documentation available on the MTF Panel series page for question-specific details.

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The MTF study consists of six different survey forms (five forms from 1976-1988). This study contains the data for Form 5 longitudinal panel participants. The MTF Form 5 restricted panel dataset includes data for the base year (BY) 12th grade surveys (modal age 18) and their young adult follow-up FU surveys (modal ages 19-30).

In addition to demographic-related questions and questions about lifetime, annual, and 30-day substance use that are included on all survey forms, Form 5 also includes questions covering:

• Non-prescription substance use, including Ritalin, Adderall, Oxycontin, Vicodin, fentanyl
• Energy drinks/shots
• Flavored alcohol, alcohol+caffeine
• Flavored small and large cigars
• Hookah
• dissolvable tobacco, snus, smokeless tobacco
• Synthetic marijuana use
• Incidence of first use
• Perceived risk of substance use
• Own and others' attitudes and perceptions about substance use
• Exposure to substance use
• Substance use problems
• Reasons for substance use, abstention or stopping use
• Perceived availability of substances
• Expected future substance use
• Sources of help and treatment for substance use
• Job-related substance use testing
• Methods of substance use
• Satisfaction with life domains
• Interpersonal relationships
• Parenthood: status, attitudes, expectations
• Dating, marriage, and family: status, values, attitudes, expectations, sex roles
• Military: plans for service, attitudes toward the military as an institution and occupation
• Working arrangements and settings
• Work ethic/success orientation
• Leisure time: extent, activities, and attitudes
• Community involvement
• Voting and political activism
• Political interest and preference
• Concern for others, locally and globally
• Conservation of resources, ecological concerns, mass transit
• Attitudes towards discrimination
• Expectations concerning societal change
• Reactions to personal and social change
• Personal materialism
• Delinquency and victimization
• Psychosocial domains: boredom, loneliness, self-esteem, depressive affect,social support, self-efficacy, risk taking
• Healthy behaviors, illness, COVID-19
• Post high school: status, plans, characteristics
• High school sport involvement, concussion
• Substance use education in high school

Please see the study documentation available on the MTF Panel series page for question-specific details, including content areas included in all survey forms.

More information about the MTF project can be accessed through the Monitoring the Future website. Annual reports are published by the research team, describing the data collection and trends over time.

The National Corrections Reporting Program (NCRP) compiles offender-level data on admissions and releases from state and federal prisons and post-confinement community supervision. The data are used to monitor the nation's correctional population and address specific policy questions related to recidivism, prisoner reentry, and trends in demographic characteristics of the incarcerated and community supervision populations. The Bureau of Justice Statistics (BJS) has administered the NCRP since 1983. Abt Associates has served as the NCRP data collection agent since October 2010. This version of the NCRP contains selected variables making it suitable for public release.

This version of the NCRP data contains data for term records, prison admissions, prison releases, and year-end prison population counts. The data files have selected variables making the data suitable for public release. The complete version of NCRP data is classified as restricted access. Please search for (ICPSR No. 39233) to find the analogous complete version of this file.

The Americans' Changing Lives (ACL) survey series is an ongoing, nationally representative, longitudinal study focusing especially on differences between Black and White Americans in middle and late life. These data constitute the first, second, third, fourth, fifth, and sixth waves in a panel survey covering a wide range of sociological, psychological, mental, and physical health items. Wave I of the study began in 1986 with a nation face-to-face survey of 3,617 adults ages 25 and up, with Black Americans and people aged 60 and over over-sampled at twice the rate of the others. Wave II constitutes face-to-face re-interviews in 1989 of those still alive. Survivors have been re-interviewed by telephone, and when necessary face-to-face, in 1994 (Wave III), 2001/02 (Wave IV), 2011 (Wave V), and 2019/21 (Wave VI).

Please note that for Wave VI, the majority of data collection occurred in 2019, with only a small subset (n=39) of participants surveyed in 2021.

ACL was designed and sought to investigate the following: (1) The ways in which a wide range of activities and social relationships that people engage in are broadly "productive," (2) how individuals adapt to acute life events and chronic stresses that threaten the maintenance of health, effective functioning, and productive activity, and (3) sociocultural variations in the nature, meaning, determinants, and consequences of productive activity and relationships. Among the topics covered are interpersonal relationships (spouse/partner, children, parents, friends), sources and levels of satisfaction, social interactions and leisure activities, traumatic life events (physical assault, serious illness, divorce, death of a loved one, financial or legal problems), perceptions of retirement, health behaviors (smoking, alcohol consumption, overweight, rest), and utilization of health care services (doctor visits, hospitalization, nursing home institutionalization, bed days). Also included are measures of physical health, psychological well-being, and indices referring to cognitive functioning.

Demographic information provided for individuals includes household composition, number of children and grandchildren, employment status, occupation and work history, income, family financial situation, religious beliefs and practices, ethnicity, race, education, sex, and region of residence.

The Utility Value Intervention (UVI) Study in Postsecondary Gateway Science Courses, funded by Institute of Education Sciences (IES) as a large-scale intervention study, aimed to assess the effectiveness of the utility value intervention in enhancing students' academic progress (reflected in course grades) and persistence (continued enrollment in science courses and sustained interest). Specifically, the study sought to determine whether the intervention had the greatest positive impact on first-generation college students (FG), underrepresented minority students (URM), first-generation underrepresented minority students (FG-URM), and students with multiple high-risk identities.

This research was conducted within physics and chemistry courses and implemented as a multi-cohort double-blind randomized controlled trial, involving a total of 7,863 undergraduate participants across six different student cohorts and two science departments. Upon entry into the study, all students were randomly assigned to either the UVI treatment group or a control group. Randomization was stratified based on underrepresented ethnic minority status, first-generation college status, and gender to ensure balanced representation of these subgroups in both treatment and control conditions.

Students remained in their assigned condition throughout the study, even if they enrolled in both physics and chemistry courses. The number of cohorts was determined to ensure an adequate sample size for assessing the intervention's effectiveness across various student subgroups with diverse socio-demographic characteristics. Given the study's implementation within the quarter system, Cohorts 1, 3, and 5 commenced in the fall quarter, while Cohorts 0, 2, and 4 began in the winter quarter.