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ICPSR 20180

Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2006

Lloyd D. Johnston 

Jerald G. Bachman 

Patrick M. O'Malley 

John E. Schulenberg 
University of Michigan. Institute for Social Research. Survey Research Center

2007-10-29
October 2007

Inter-university Consortium for
Political and Social Research
P.O. Box 1248
Ann Arbor, Michigan 48106
www.icpsr.umich.edu

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 E. Schulenberg. Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2006 [Computer file]. ICPSR20180-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2007-10-29. doi:10.3886/ICPSR20180

Request for Information on
Use of ICPSR Resources:

To provide funding agencies with essential information about use of archival resources and to facilitate the exchange of information about ICPSR participants' research activities, users of ICPSR data are requested to send to ICPSR bibliographic citations for each completed manuscript or thesis abstract. Please indicate in a cover letter which data were used.

Data Disclaimer:

The original collector of the data, ICPSR, and the relevant funding agency bear no responsibility for uses of this collection or for interpretations or inferences based upon such uses.

Responsible use Statement:

In preparing data for public release, ICPSR performs a number of procedures to ensure that the identity of research subjects cannot be disclosed. Any intentional identification or disclosure of a person or establishment violates the assurances of confidentiality given to the providers of the information. Therefore, users of data obtained from the ICPSR archive and/or any of its special topic archives agree:

  • To use these datasets solely for statistical analysis and reporting of aggregated information, and not for investigation of specific individuals or organizations, except when identification is authorized in writing by ICPSR

  • To make no use of the identity of any person or establishment discovered inadvertently, and to advise ICPSR of any such discovery

  • To produce no links among ICPSR datasets or among ICPSR data and other datasets that could identify individuals or organizations

Redistribution:

ICPSR data may not be redistributed or sold to other individuals, institutions, or organizations without the written agreement of ICPSR.

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, over-the-counter medications, tobacco, smokeless tobacco, alcohol, inhalants, steroids, marijuana, hashish, LSD, hallucinogens, cocaine, crack, ecstasy, methamphetamine, and injectable drugs such as heroin.

General Study Overview

Title:

Monitoring the Future: A Continuing Study of American Youth (8th- and 10th-Grade Surveys), 2006

Principal Investigator(s):

Lloyd D. Johnston 

Jerald G. Bachman 

Patrick M. O'Malley 

John E. Schulenberg , University of Michigan. Institute for Social Research. Survey Research Center

ICPSR Study No:

20180

Funding Agency:

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

Grant Number:

DA-01411

Methods

Universe:

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

Data Source:

on-site questionnaire

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.

Response Rates:

The student response rates for the 2006 8th- and 10th-grade surveys were 91 percent and 88 percent, respectively.

Date(s) of Data Collection:

2006, Spring

Summary of Contents

Unit of Observation:

individual

Extent of Processing:

Standardized missing values.

Data Collection Notes:

(1) In 2005, two of the questionnaire forms had a new version of the race question. It included Hispanic as one of the categories in addition to Black and White. For 2006, all four forms have this new version for the race variable. (2) 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. (3) Variables omitted from the Western region questionnaires are noted in each codebook. (4) 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.

Data Format:

Logical Record Length with SAS, SPSS, and Stata setup files, SAS transport (CPORT) file, SPSS system file, Stata system file, and tab-delimited ASCII data file

Datasets

  • DS1: 8th-Grade Form 1 Data
  • DS2: 8th-Grade Form 2 Data
  • DS3: 8th-Grade Form 3 Data
  • DS4: 8th-Grade Form 4 Data
  • DS5: 10th-Grade Form 1 Data
  • DS6: 10th-Grade Form 2 Data
  • DS7: 10th-Grade Form 3 Data
  • DS8: 10th-Grade Form 4 Data