Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2005 (ICPSR 4537)

Version Date: Mar 12, 2010 View help for published

Cite this study |

Principal Investigator(s): View help for Principal Investigator(s)
Lloyd D. Johnston, University of Michigan. Institute for Social Research. Survey Research Center; Jerald G. Bachman, University of Michigan. Institute for Social Research. Survey Research Center; Patrick M. O'Malley, University of Michigan. Institute for Social Research. Survey Research Center; John E. Schulenberg, University of Michigan. Institute for Social Research. Survey Research Center

Series:

https://doi.org/10.3886/ICPSR04537.v2

Version V2

Alternate Title View help for Alternate Title

MTF 2005 (8th/10th Grade)

Summary View help for Summary

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 drug use. There are more than 450 variables across the questionnaires. Drugs covered by this survey include amphetamines (stimulants), barbiturates (tranquilizers), other prescription drugs, tobacco, alcohol, inhalants, steroids, marijuana, hashish, LSD, hallucinogens, cocaine, crack, ecstasy, methamphetamine, and injection drugs such as heroin.

Citation View help for Citation

Johnston, Lloyd D., Bachman, Jerald G., O’Malley, Patrick M., and Schulenberg, John E. Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2005. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2010-03-12. https://doi.org/10.3886/ICPSR04537.v2

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Funding View help for Funding

United States Department of Health and Human Services. National Institutes of Health. National Institute on Drug Abuse (DA001411)

Subject Terms View help for Subject Terms

Geographic Coverage View help for Geographic Coverage

Restrictions View help for Restrictions

Users are reminded that these data are to be used solely for statistical analysis and reporting of aggregated information and not for the investigation of specific individuals.

Distributor(s) View help for Distributor(s)

Inter-university Consortium for Political and Social Research

Time Period(s) View help for Time Period(s)

2005

Date of Collection View help for Date of Collection

2005 (Spring)

Data Collection Notes View help for Data Collection Notes

For 2005, two of the questionnaire forms, Form 1 and Form 3, have a new version of the race question. Previously, the racial categories were Black and White. The new version includes Black, White, and Hispanic.

To protect the anonymity of respondents, all variables that could be used to identify individuals have been collapsed or recoded in the public use files. These modifications should not affect analytic uses of the public use files.

Variables omitted from the Western region questionnaires are noted in each codebook.

A user guide is provided with the study documentation. It contains two year-to- year cross-time question indices for the MTF 8th- and 10th-grade surveys. The first is sorted by subject area and the second is sorted by question location.

MTF does not release detailed geography codes in its public use files because of the disclosure risk it would cause. The MTF sample is drawn to generate representative samples of the four Census Bureau regions of the country (Northeast, Midwest, South, and West), but it does not generate representative samples of smaller geographic areas such as states, counties, or cities. For additional information about data that is withheld from the public use files please contact MTF directly at mtfinformation@umich.edu.

Sample View help for Sample

A multistage area probability sample design was used involving three selection stages: (1) geographic areas or primary sampling units (PSUs), (2) schools (or linked groups of schools) within PSUs, and (3) students within sampled schools. Of the 72 PSUs, 8 were selected with certainty, 10 were selected with a probability of .50, and the remainder were selected with probability proportionate to the size of the 8th- or 10th- grade class. In schools with more than 350 students in the grade, a random sample of students or classes was drawn. In schools with less than 350 students in a grade, all students were asked to participate. Each school was asked to participate for two years so that each year one-half of the sample would be replaced. Schools refusing participation were replaced with similar schools in terms of geographic location, size, and type of school (e.g., public, private/Catholic, private/non-Catholic). For the 8th-grade survey, schools with less than 20 8th graders were excluded from the sample. For the 10th-grade survey, schools with less than 25 10th graders were excluded. The participation rate among schools has been between 66 and 80 percent since the inception of the study.

Universe View help for Universe

Enrolled 8th- and 10th-grade students in the contiguous United States.

Unit(s) of Observation View help for Unit(s) of Observation

individual

Method of Data Collection View help for Method of Data Collection

survey data

Mode of Data Collection View help for Mode of Data Collection

Response Rates View help for Response Rates

The student response rates for the 2005 8th- and 10th-grade surveys were 90 percent and 88 percent, respectively.

Original Release Date View help for Original Release Date

2006-10-31

Version History View help for Version History

2018-02-15 The citation of this study may have changed due to the new version control system that has been implemented. The previous citation was:
  • Johnston, Lloyd D., Jerald G. Bachman, Patrick M. O'Malley, and John E. Schulenberg. Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2005. ICPSR04537-v2. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2010-03-12. http://doi.org/10.3886/ICPSR04537.v2

2010-03-12 Corrected data were provided by the principal investigator for the question about binge drinking (item reference number 00850). Other minor corrections were made to the question text and value labels to provide greater consistency between matching variables in other years of data in the series.

2006-10-31 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Standardized missing values.
  • Performed recodes and/or calculated derived variables.
  • Checked for undocumented or out-of-range codes.

Weight View help for Weight

Each of the eight parts contains a weight variable, V5. They were originally varied by school but were modified to protect respondent confidentiality. Users should use the weight variable for all analyses, the results of which will differ slightly from published data tables that used original data.

Notes

  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.

  • The citation of this study may have changed due to the new version control system that has been implemented. Please see version history for more details.
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This study is maintained and distributed by the National Addiction & HIV Data Archive Program (NAHDAP). NAHDAP is supported by the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health (NIH).