Evaluation of the Adolescent Portable Therapy (APT) Program [New York City], 2001-2004 (ICPSR 4299)

Principal Investigator(s): Parsons, James, Vera Institute of Justice; Ross, Tim, Vera Institute of Justice


This study contains data collected for an evaluation of the Adolescent Portable Therapy (APT) Program, which provided family-based drug treatment services to adolescents involved with the New York City juvenile justice system on charges of Persons In Need of Supervision (PINS) or delinquency. The program aimed to improve five core areas of the young peoples' lives: substance use, mental health, schooling, family functioning, and recidivism. Recruitment for the study occurred at juvenile detention facilities in New York City. Intake staff conducted screening interviews with the detainees. Those who reported using substances at least 30 times in the previous 30 days, or who met Diagnostic and Statistical Manual of Mental Disorders - Fourth Edition (DSM IV) criteria for substance abuse or dependence were eligible for selection. After the respondents and their families consented to participate, the respondents were randomly assigned to treatment and control groups. The treatment group went on to receive services from APT, while control group subjects received no APT services but had access to all other standard facilities and community based services. The evaluation participants were interviewed at four time points: at intake into the study in the juvenile detention facilities (baseline), three months after release from detention (T1), nine months after release from detention (T2), and 15 months after release from detention (T3). Whenever subjects were interviewed outside of a detention facility for T1, T2, and T3, study staff attempted to collect urine samples which were tested for marijuana, cocaine, amphetamines, phencyclidine (PCP), and opiates. Topics covered by the interviews included substance use and treatment, physical health, risk behaviors and disease prevention, mental and emotional health, living situation and environment, crime and legal issues, school, work, income, and demographic characteristics.

Access Notes

  • One or more files in this data collection have special restrictions ; consult the restrictions note to learn more. You can apply online for access to the restricted-use data. A login is required to apply.

    The data files are restricted from general dissemination for reasons of confidentiality. Users interested in obtaining these data must complete an Agreement for the Use of Confidential Data, specify the reasons for the request, and obtain IRB approval or notice of exemption for their research. Apply for access to these data through the ICPSR restricted data contract portal, which can be accessed via the study home page.

    Any public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.

  • Health and Medical Care Archive

    This study is maintained and distributed by the Health and Medical Care Archive (HMCA). HMCA is the official data archive of the Robert Wood Johnson Foundation.


DS1:  Baseline Data
No downloadable data files available.
DS2:  Follow-up Data
No downloadable data files available.
DS3:  Urinalysis Data
No downloadable data files available.

Study Description


Parsons, James, and Tim Ross. Evaluation of the Adolescent Portable Therapy (APT) Program [New York City], 2001-2004. ICPSR04299-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2005-11-04. https://doi.org/10.3886/ICPSR04299.v1

Persistent URL: https://doi.org/10.3886/ICPSR04299.v1

Export Citation:

  • RIS (generic format for RefWorks, EndNote, etc.)
  • EndNote XML (EndNote X4.0.1 or higher)


This study was funded by:

  • Robert Wood Johnson Foundation (042697)

Scope of Study

Subject Terms:    alcohol abuse, correctional facilities (juveniles), drug abuse, juvenile inmates, juvenile justice, marijuana, substance abuse, substance abuse treatment, youthful offenders

Smallest Geographic Unit:    New York City

Geographic Coverage:    New York City, New York (state), United States

Time Period:   

  • 2001--2004

Date of Collection:   

  • 2001--2004 (January 2001 to November 2004)

Universe:    Adolescents under 17 years of age who were admitted to juvenile detention facilities in New York City during 2001-2003 (in the custody of the New York City Department of Juvenile Justice) and who met DSM IV criteria for substance use and dependence or used substances at least 30 times in 30 days.

Data Type(s):    clinical data


Sample:    Altogether, 492 adolescents were recruited into the study, of which 247 were assigned to the treatment group and 245 were in the control group. However, baseline data were secured for only 478 cases (360 males and 118 females) because 14 questionnaires were misplaced or destroyed before they were electronically processed. At least one follow-up interview was completed with 234 of the participants: 168 were interviewed at T1, 139 at T2, and 81 at T3. Urinalysis results were obtained for 22 subjects at T1, 23 at T2, and 20 at T3.

Mode of Data Collection:    face-to-face interview, telephone interview

Data Source:

personal interviews

drug test results


Original ICPSR Release:   2005-11-04

Related Publications


Metadata Exports

If you're looking for collection-level metadata rather than an individual metadata record, please visit our Metadata Records page.

Download Statistics