Monitoring the Future: A Continuing Study of the Lifestyles and Values of Youth, 1993 (ICPSR 6367)
Alternate Title: MTF 1993 (12th Grade)
Principal Investigator(s): Johnston, Lloyd D., University of Michigan. Institute for Social Research. Survey Research Center; Bachman, Jerald G., University of Michigan. Institute for Social Research. Survey Research Center; O'Malley, Patrick M., University of Michigan. Institute for Social Research. Survey Research Center
This is the nineteenth annual survey in this series that explores in important values, behaviors, and lifestyle orientations of contemporary American youth. The students are randomly assigned one of six questionnaires, each with a different subset of topical questions but all containing a set of "core" questions on demographics and drug use. There are about 1,300 variables across the questionnaires. Full details on the research design and procedures, sampling methodology, content areas, and questionnaire design, as well as percentage distributions by respondent's sex, race, region, college plans, and drug use, appear in the annual ISR volumes MONITORING THE FUTURE: QUESTIONNAIRE RESPONSES FROM THE NATION'S HIGH SCHOOL SENIORS.
These data are freely available.
Johnston, Lloyd D., Jerald G. Bachman, and Patrick M. O'Malley. Monitoring the Future: A Continuing Study of the Lifestyles and Values of Youth, 1993. ICPSR06367-v3. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2006-08-21. http://doi.org/10.3886/ICPSR06367.v3
Persistent URL: http://doi.org/10.3886/ICPSR06367.v3
This study was funded by:
- United States Department of Health and Human Services. National Institutes of Health. National Institute on Drug Abuse
Scope of Study
Subject Terms: attitudes, demographic characteristics, drug use, family life, high school students, life plans, lifestyles, social behavior, social change, values, youths
Geographic Coverage: United States
Date of Collection:
Unit of Observation: individual
Universe: High school seniors in the contiguous United States.
Data Types: survey data
Data Collection Notes:
(1) Percentage distributions provided in the codebook were generated using full weights, which are not available on the public use files. Therefore, these results cannot be replicated using the public use files. The differences between results produced using the full weights and those produced using the sampling weights available on the public use files are estimated to be below 1 percent. (2) To protect the confidentiality of respondents, all variables that could be used to identify individuals have been collapsed or recoded on the public use files. These modifications should not affect analytic uses of the public use files.
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 firstname.lastname@example.org.
Sample: Multistage area probability sample design 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 69 PSUs, 16 were selected with certainty and 53 were selected with probability proportionate to size based on the size of the senior class. In schools with more than 400 seniors, a random sample of seniors or classes was drawn. In schools with less than 400 seniors, all seniors were asked to participate. Each school was asked to participate for two years, so that each year one-half of the sample is 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). The participation rate among schools has been between 66 and 80 percent since the inception of the study.
Weight: Each of the seven parts contains a weight variable, V5. They were originally varied by school but were modified to protect respondent confidentiality. Use the weight variable for all analyses, the results of which will differ slightly from published data tables that used original data.
Mode of Data Collection: self-enumerated questionnaire
Response Rates: The overall student response rate for 1993 was 84 percent.
Extent of Processing: 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:
- Created online analysis version with question text.
- Performed recodes and/or calculated derived variables.
- Checked for undocumented or out-of-range codes.
Original ICPSR Release: 1995-06-06
- 2006-08-21 The third edition of this data collection corrects a few missing value assignments in Part 1: Core Data. This changed the logical record length of the data file. Accordingly, the new setup files should only be used with the newly released data file. The new column location specifications are documented in the revised codebook under "UPDATED COLUMN LOCATIONS". Also note, the column specifications in the codebook frequencies reflect the 1st ICPSR edition.
- 2005-11-04 On 2005-03-14 new files were added to one or more datasets. These files included additional setup files as well as one or more of the following: SAS program, SAS transport, SPSS portable, and Stata system files. The metadata record was revised 2005-11-04 to reflect these additions.
- 2004-11-11 The second edition of this data collection corrects errors in column locations for several variables, which were previously misspecified in either the data definition statements or the codebook. Additionally in this edition, missing data and undocumented codes were recoded to -9 and labeled as "Missing". These recodes changed the logical record length of the data files. Accordingly, the new data definition statements should only be used with the newly released data files. The new column location specifications are documented in the revised codebook under "UPDATED COLUMN LOCATIONS". Also note, the column specifications in the codebook frequencies reflect the 1st ICPSR edition.
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The next questions are about your experiences in school. A10: During how many years (if any) have you participated in each of the following types of organized activities or groups? A10M: ...other community youth organizations
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