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ICPSR 3426 | Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2001Lloyd D. Johnston Jerald G. Bachman Patrick M. O'Malley John Schulenberg | ||
2006-03-30 | |||
Inter-university Consortium for | |||
Terms of Use | |
Bibliographic Citation: | Publications based on ICPSR data collections should acknowledge those sources by means of bibliographic citations. To ensure that such source attributions are captured for social science bibliographic utilities, citations must appear in footnotes or in the reference section of publications. The bibliographic citation for this data collection is: Johnston, Lloyd D., Jerald G. Bachman, Patrick M. O'Malley, and John Schulenberg. MONITORING THE FUTURE: A CONTINUING STUDY OF AMERICAN YOUTH (8TH- AND 10TH-GRADE SURVEYS), 2001 [Computer file]. Conducted by University of Michigan, Survey Research Center. ICPSR03426-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [producer and distributor], 2002. doi:10.3886/ICPSR03426 |
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Summary | |
General Study Overview | |
Title: | Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2001 |
Principal Investigator(s): | Lloyd D. Johnston Jerald G. Bachman Patrick M. O'Malley John Schulenberg , University of Michigan, Institute for Social Research, Survey Research Center |
ICPSR Study No: | 3426 |
United States Department of Health and Human Services. National Institute on Drug Abuse | |
DA-01411 | |
Methods | |
Enrolled 8th- and 10th-grade students in the contiguous United States. | |
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 72 PSUs, 8 were selected with certainty, 10 were selected with a probability of .50, and the remainder were selected probability proportionate to the size 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 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). For the 8th-grade survey, schools with less than 15 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. The student response rates for the 2000 8th- and 10th-grade surveys were 90 percent and 88 percent, respectively. | |
2001 | |
Summary of Contents | |
CONCHK.PR/ UNDOCCHK.PR/ MDATA.ICPSR/ REFORM.DATA/ UNDOCCHK.ICPSR/ CDBK.ICPSR/ DDEF.ICPSR/ FREQ.ICPSR/ REFORM.DOC/ RECODE | |
SAS SPSS STATA | |
(1) 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. (2) Two year-to-year cross-time question indices for the MTF 8th- and 10th-grade surveys can be viewed on the SAMHDA Web site. The first is sorted by question location and the second is sorted by subject area, item number, and questionnaire form. (3) The codebooks are provided by ICPSR as Portable Document Format (PDF) files. The PDF file format was developed by Adobe Systems Incorporated and can be accessed using PDF reader software, such as the Adobe Acrobat Reader. Information on how to obtain a copy of the Acrobat Reader is provided on the ICPSR and SAMHDA Web sites. | |
Logical Record Length with SAS, SPSS, and Stata setup files, SAS transport file, SPSS portable file, and Stata system file | |
Datasets
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