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Arrestee Drug Abuse Monitoring (ADAM) Project in Rural Nebraska, 1998 (ICPSR 28141)

Released/updated on: 2011-01-28

Geographic coverage: Omaha, United States, Nebraska

Time period: 1998-10-01--1998-11-30

A pilot outreach project of the National Intstitute of Justice's Arrestee Drug Abuse Monitoring (ADAM) program, the rural Nebraska ADAM program examined the prevalence and type of arrestee drug use in four rural Nebraska counties and compared the results to those found in Omaha, Nebraska, an established ADAM site. The data were collected in Madison (n=78), Dawson (n=50), Hall (n=53), and Scotts Bluff (n=149) counties, and Omaha, Nebraska, (n=202) in October and November of 1998. The catchment area for Omaha was the central city. The ADAM interview provided demographic and descriptive data, including race, age, marital status, source of income, screens of substance abuse and dependency, treatment history, arrest and incarceration experiences, and participation in local drug markets. At the conclusion of the interview, respondents were asked to provide a urine specimen. The current study included a supplemental questionnaire about methamphetamine use. The methamphetamine addendum included variables on why the respondent began and continued the use of methamphetamines, how often and how much methamphetamine was used, if and why the respondent had ever sought and completed treatment, source of the methamphetamine, and if the respondent had ever made or sold methamphetamine.

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Differences in the Validity of Self-Reported Drug Use Across Five Factors in Indianapolis, Fort Lauderdale, Phoenix, and Dallas, 1994 (ICPSR 2706)

Released/updated on: 2000-09-11

Geographic coverage: Indiana, United States, Texas, Fort Lauderdale, Phoenix, Florida, Dallas, Arizona, Indianapolis

Time period: 1994-01-01--1994-12-31

This study investigated the accuracy of self-reported drug use in three ways. First, the researchers examined differences in the accuracy of self-reported drug use across five factors: gender, race, age, type of drug, and offense seriousness. Second, an attempt was made to determine the specific sources of inaccurate self-reports in terms of differences in underreporting and overreporting. Third, the researchers sought to explain differences in underreporting and overreporting in terms of true differences or differences in opportunity to underreport or overreport. This study used data collected in 1994 as part of the Drug Use Forecasting (DUF) Program [DRUG USE FORECASTING IN 24 CITIES IN THE UNITED STATES, 1987-1997 (ICPSR 9477)]. The DUF drug testing and measurement methodology allows the accuracy of self-reported drug use to be checked with a biological criterion, namely urine tests. The sample for this study consisted of 4,752 white and Black adults from Indianapolis, Ft. Lauderdale, Phoenix, and Dallas. The five exogenous measures included in this study were type of drug (marijuana vs. crack/cocaine), age (18 through 30 vs. 31 or over), offense seriousness (misdemeanor vs. felony), race (Black vs. white), and gender (male vs. female). The endogenous measures were accuracy (self-report and drug test both positive or both negative vs. otherwise), underreporting (self-report negative but drug test positive vs. otherwise), and overreporting (self-report positive but drug test negative vs. otherwise). Variables include result of marijuana urine test, result of cocaine/crack urine test, marijuana self-report, cocaine/crack self-report, age group, sex, race, offense category, and ethnic/gender group.

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Pursuing a National Estimate of Dual System Youth, Illinois, New York, Ohio, 1992-2014 (ICPSR 39105)

Released/updated on: 2024-06-26

Geographic coverage: New York City, Illinois, Ohio

Time period: 1992-01-01--2014-12-31

Across the country, child welfare and juvenile justice systems now recognize that youth involved in both systems (i.e., dual system youth) are a vulnerable population who go unrecognized because of challenges in information-sharing and cross-system collaboration. These challenges currently prevent the development of accurate estimations of the number of dual system youth nationally and limit understanding of best practices used by jurisdictions implementing integrated systems models. OJJDP funded this secondary analysis study to address this gap in knowledge.

All data used in the Dual System Youth Design Study were owned or accessed by various partners. No primary data collection occurred in the study. In addition, most of the data accessed by the study partners was confidential, de-identified data that required memorandums of agreement and/or court orders to access and use. Some sites have ongoing or standing agreements with the public agencies who own the data which allow access and use for specific projects. Because, most frequently, the data are owned by the public service agencies and include sensitive information the data are not available to be publicly archived. Instead, here a descriptive overview is provided of the data used and accessed by each study partner as well as contact information of a person at each site that will be able to share syntax and/or coding parameters for those who are considering to replicate the findings or methods.

Researchers interested in inquiring the data and syntax used in this project should refer to the study partners section of the downloadable study documentation. Data provider agency names along with the specific study data that were requested are listed in the documentation.

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Sexual Assault Kit Backlog Study, Los Angeles, California, 1982-2010 (ICPSR 33841)

Released/updated on: 2013-11-20

Geographic coverage: United States, Los Angeles, California

Time period: 1982-01-01--2010-12-31

The study addressed the growing problem of untested sexual assault kits that have been collected and stored in law enforcement agencies' storage facilities and forensic laboratories throughout the nation. Project researchers randomly collected a 20 percent sample of the 10,895 backlogged sexual assault cases (cases with untested sexual assault kits) at the Los Angeles Police Department (LAPD) and Los Angeles Sherriff's Department (LASD) to be tested and to evaluate the scientific results achieved by private testing laboratories. After sorting through files and eliminating many due to time constraints, case count fluctuations throughout the course of the data collection, the inability to locate every case file, and removing cases due to the suspects' age, the researchers collected and coded sexual assault case information on 1,948 backlogged cases from 1982 to 2009. Data were also collected on 371 non-backlogged sexual assault cases with sexual assault kits that were tested between January 1, 2009 and August 1, 2010. Data collection focused on the respective agencies' crime laboratory files and the DNA reports submitted by outside private testing laboratories. Data collection tools for this project focused on key descriptive, investigative, critical event times/dates, physical evidence, and analytical tests performed on the evidence. Records yielded information on DNA profiles and related Combined DNA Index System (CODIS) submission activity. Criminal justice case disposition information was also collected on a total of 742 cases including a sample of 371 backlogged cases and the 371 non-backlogged cases to examine the impact of evidence contained in sexual assault kits on criminal justice disposition outcomes. The resulting 2,319 case dataset, which is comprised of 1,948 backlogged cases and 371 non-backlogged cases, contains 377 variables relating to victim, suspect, and crime characteristics, laboratory information and testing results, CODIS information, and criminal justice dispositions.