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Seattle Social Development Project, Waves 8-10, 1993-1999 (ICPSR 39043)
Released/updated on: 2024-04-09
Geographic coverage: Seattle, United States, Washington
Time period: 1993-01-01--1999-12-31
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.