Fast Track assessed delinquent behaviors and alcohol and cannabis use at follow-ups from grade 7 through two years post high school. Delinquency was measured using the Self-Reported Delinquency Scale from the Pittsburgh Youth Study (Huizinga & Elliott, 1987), which measures involvement in property damage, theft, assault, and substance use. The score indexes the proportion of 25 general delinquency behaviors in which the child was involved. Alcohol Use and Cannabis Use were measured using the Tobacco, Alcohol and Drugs (grades 7 through12) and Tobacco, Alcohol and Drugs-Revised (years 1 and 2 post-high school) assessment instruments (Bureau of Labor Statistics, 2002). For alcohol, the instrument measured the number of days consuming 5-plus drinks and number of days drunk in the past year. These two numbers were averaged to calculate days of problem drinking. For cannabis, the instrument measured days of cannabis consumption in the past month. Detailed documentation of all Fast Track measures is provided on the Fast Track website (www.fastrackproject.org/data-instruments.php).
