DOI: 10.3886/icpsr39043.v1
title: Seattle Social Development Project, Waves 8-10, 1993-1999
title: Version 1

description: The Social Development Project (SSDP) is a prospective longitudinal study that has
been in the field for over thirty years. Beginning in 1985, SSDP has followed a
cohort of 808 individuals from childhood through adulthood. Within the cohort
is nested a subset, who, in first grade, received an intervention that aimed to
use the principals of the Social Development Model to develop pro-social
behavior. Intervention effects into the thirties confirm that the original
intervention has had positive effects on development and long-term health
outcomes. The archived data are from waves 8, 9, and 10 of data collection, and
were collected in years 1993, 1996, and 1999 respectively. In these years the
cohort had an average age of 18, 21, and 24. Items included are measures of
substance misuse, dependence, and addiction. Data for waves 9 and 10 are
outcome and addiction variables only.
description: The purpose of this study is to implement an intervention that aimed to use the principals of the Social Development Model to develop pro-social behavior.
description: This study includes variables asking about participants' family life, alcohol and drug use, and their neighborhoods.
description: Response Rates: The response rate was 85% or higher in 1993, 1996, and 1999. About 60% of participants provided consent for archiving.
description: Presence of Common Scales: Abuse/dependence diagnosis and criterion count measures are based on DSM-IV criteria (Diagnostic Interview Schedule).
description: In 1980, first-graders
from five Seattle public schools serving high-crime neighborhoods were
recruited to participate in an intervention. The intervention involved
students, parents, and teachers in pro-social bonding and behavior exercises
and trainings in first, second, third, and fourth grades. In 1985, the study
was expanded to include 808 of 1,053 eligible fifth graders and their
parents/caregivers (G2 and G1, respectively) at 18 different public schools in
Seattle. An initial assessment was administered at this time. Over the next
thirty years, the cohort was interviewed fourteen more times, most recently in
2014. Throughout the years, the study has been expanded to include measures of
the built environment, genes, and even a third generation (G3).
The
full sample consists of 808 individuals. 374 respondents consented to archiving. The sample is gender-balanced and racially
and ethnically diverse: 47% identify as European-American, 26% as
African-American, 22% as Asian-American, and 5% as Native American. The Seattle Social Development Project
originally drew from elementary schools in low-income neighborhoods, and
roughly half of the participants qualified for the National School Lunch/School
Breakfast Program when the study began in 1985.
description: Datasets: 
DS1: Seattle Social Development Project, Waves 8-10, 1993-1999
description: computer-assisted personal interview (CAPI); computer-assisted self interview (CASI); computer-assisted telephone interview (CATI); mail questionnaire; paper and pencil interview (PAPI); on-site questionnaire