DOI: 10.3886/icpsr09745.v2
title: Monitoring the Future: A Continuing Study of the Lifestyles and Values of Youth, 1990
title: Version 2

description: This is the sixteenth annual survey in this series that
explores changes 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.
description: Multistate 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. The
overall student response rate for 1990 was 86 percent.
description: Datasets: 
DS0: Study-Level Files
DS1: Core Data
DS2: Form 1 Data
DS3: Form 2 Data
DS4: Form 3 Data
DS5: Form 4 Data
DS6: Form 5 Data
DS7: Form 6 Data
description: High school seniors in the contiguous United States.
description: 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.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 mtfinformation@umich.edu.