The Panel Study of Income Dynamics (PSID) began in 1968 with a nationally representative sample of over 18,000 individuals living in 5,000 families in the United States. Information on these individuals and their descendants has been collected continuously, including data covering employment, income, wealth, expenditures, health, marriage, childbearing, child development, philanthropy, education, and numerous other topics.

The California Drug and Alcohol Treatment Assessment

(CALDATA) was designed to study the costs, benefits, and effectiveness

of the state's alcohol and drug treatment infrastructure (recovery

services) and specifically to assess (1) the effects of treatment on

participant behavior, (2) the costs of treatment, and (3) the economic

value of treatment to society. Data were collected on participants

(clients) across four types of treatment programs, or modalities:

residential, residential "social model," nonmethadone outpatient, and

outpatient methadone (detoxification and maintenance). Data were

collected in two phases. In Phase 1, treatment records were abstracted

for clients who received treatment or were discharged between October

1, 1991, and September 30, 1992. In Phase 2, these clients were

located and recruited for a follow-up interview. The CALDATA design

and procedures included elements from several national treatment

outcome studies including the Drug Services Research Survey, Services Research Outcomes Study, National

Treatment Improvement Evaluation Study, and Drug Abuse

Treatment Outcome Study. The record abstract was designed

to collect identifying and locating information for interview

reference during the personal interviewing phase. The abstract also

collected demographic, drug, or alcohol use, and treatment and service

information. The follow-up questionnaire covered time periods before,

during, and after treatment and focused on topics such as ethnic and

educational background, drug and alcohol use, mental and physical

health, HIV and AIDS status, drug testing, illegal activities and

criminal status, living arrangements and family issues, employment and

income, and treatment for drug, alcohol, and mental health

problems. Drugs included alcohol, barbiturates, benzodiazepines,

cocaine powder, crack, downers, hallucinogens, heroin, illegal

methadone, inhalants, LSD, marijuana/hashish/THC, methamphetamines and

other stimulants, narcotics, over-the-counter drugs, PCP, ritalin or

preludin, and sedatives/hypnotics. CALDATA was originally known as the

California Outcomes Study (COS).This study has 1 Data Set.

The DC Metropolitan Area Drug Study (DCMADS) was

conducted in 1991, and included special analyses of homeless and

transient populations and of women delivering live births in the DC

hospitals. DCMADS was undertaken to assess the full extent of the

drug problem in one metropolitan area. The study was comprised of 16

separate studies that focused on different sub-groups, many of which

are typically not included or are underrepresented in household

surveys. The Homeless and Transient Population

study examines the prevalence of illicit drug, alcohol, and tobacco

use among members of the homeless and transient population aged 12 and

older in the Washington, DC, Metropolitan Statistical Area (DC

MSA). The sample frame included respondents from shelters, soup

kitchens and food banks, major cluster encampments, and literally

homeless people. Data from the questionnaires include history of

homelessness, living arrangements and population movement, tobacco,

drug, and alcohol use, consequences of use, treatment history, illegal

behavior and arrest, emergency room treatment and hospital stays,

physical and mental health, pregnancy, insurance, employment and

finances, and demographics. Drug specific data include age at first

use, route of administration, needle use, withdrawal symptoms,

polysubstance use, and perceived risk.This study has 1 Data Set.

The National Survey on Drug Use and Health (NSDUH) series (formerly titled National Household Survey on Drug Abuse) primarily measures the prevalence and

correlates of drug use in the United States. The surveys are designed to provide quarterly, as well as annual estimates. Information is provided on the use

of illicit drugs, alcohol, and tobacco among members of United States households aged 12 and older. Questions included age at first use as well as

lifetime, annual, and past-month usage for the following drug classes: marijuana, cocaine (and crack), hallucinogens, heroin, inhalants, alcohol, tobacco,

and nonmedical use of prescription drugs, including pain relievers, tranquilizers, stimulants, and sedatives. The survey covered substance abuse treatment

history and perceived need for treatment, and included questions from the Diagnostic and Statistical Manual (DSM) of Mental Disorders that allow diagnostic

criteria to be applied. The survey included questions concerning treatment for both substance abuse and mental health-related disorders. Respondents were

also asked about personal and family income sources and amounts, health care access and coverage, illegal activities and arrest record, problems resulting

from the use of drugs, and needle-sharing. Questions introduced in previous administrations were retained in the 2015 survey, including questions asked

only of respondents aged 12 to 17. These "youth experiences" items covered a variety of topics, such as neighborhood environment, illegal activities, drug

use by friends, social support, extracurricular activities, exposure to substance abuse prevention and education programs, and perceived adult attitudes

toward drug use and activities such as school work. Several measures focused on prevention-related themes in this section. Also retained were questions on

mental health and access to care, perceived risk of using drugs, perceived availability of drugs, driving and personal behavior, and cigar smoking.

Questions on the tobacco brand used most often were introduced with the 1999 survey. For the 2008 survey, adult mental health questions were added to

measure symptoms of psychological distress in the worst period of distress that a person experienced in the past 30 days and suicidal ideation. In 2008, a

split-sample design also was included to administer separate sets of questions (WHODAS vs. SDS) to assess impairment due to mental health problems.

Beginning with the 2009 NSDUH, however, all of the adults in the sample received only the WHODAS questions. Background information includes gender, race,

age, ethnicity, marital status, educational level, job status, veteran status, and current household composition.This study has 1 Data Set.

Youth data for the sixth wave of the National Youth Survey

are contained in this collection. This research project, which was

designed to gain a better understanding of both conventional and

deviant types of behavior by youths, involved collecting information

from a representative sample of young people in the United States. The

first wave of this survey was conducted in 1976, the

second wave in 1977, the third wave in 1978,

the fourth wave in 1979, and the fifth wave in 1980. For this wave, youths and young adults were interviewed in early

1984 about events and behavior occurring in calendar year 1983, when

they were 17 to 26 years of age. Data are available on the demographic

and socioeconomic status of respondents, disruptive events for parents,

neighborhood problems, employment, children, aspirations and current

successes, normlessness, labeling by parents, perceived disapproval by

parents, peers, co-workers, and partner, attitudes toward deviance,

exposure to delinquent peers, self-reported delinquency, drug and

alcohol use, victimization, pregnancy, depression, use of outpatient

services, spouse violence by respondent and partner, and sexual

activity.This study has 1 Data Set.

This file includes data from the 2002 through 2009 National Survey on Drug Use and Health (NSDUH) survey. The only variables included in the 8-year 2002-2009 data file are ones that were collected in a comparable manner across all 8 years.

The National Survey on Drug Use and Health (NSDUH) series (formerly titled National Household Survey on Drug Abuse) primarily measures the prevalence and correlates of drug use in the United States. The surveys are designed to provide quarterly, as well as annual, estimates. Information is provided on the use of illicit drugs, alcohol, and tobacco among members of United States households aged 12 and older. Questions included age at first use as well as lifetime, annual, and past-month usage for the following drug classes: marijuana, cocaine (and crack), hallucinogens, heroin, inhalants, alcohol, tobacco, and nonmedical use of prescription drugs, including pain relievers, tranquilizers, stimulants, and sedatives. The survey covered substance abuse treatment history and perceived need for treatment. The survey included questions concerning treatment for both substance abuse and mental health-related disorders. Respondents were also asked about personal and family income sources and amounts, health care access and coverage, illegal activities and arrest record, problems resulting from the use of drugs, and needle-sharing. Certain questions are asked only of respondents aged 12 to 17. These "youth experiences" items covered a variety of topics, such as neighborhood environment, illegal activities, drug use by friends, social support, extracurricular activities, exposure to substance abuse prevention and education programs, and perceived adult attitudes toward drug use and activities such as school work. Also included are questions on mental health and access to care, perceived risk of using drugs, perceived availability of drugs, driving and personal behavior, and cigar smoking. Demographic information includes gender, race, age, ethnicity, marital status, educational level, job status, veteran status, and current household composition.

In the income section, which was interviewer-administered, a split-sample study had been embedded within the 2006 and 2007 surveys to compare a shorter version of the income questions with a longer set of questions that had been used in previous surveys. This shorter version was adopted for the 2008 NSDUH and will be used for future NSDUHs.This study has 1 Data Set.