TABLE I.

Measures

Measures	Number of items	Sample item	Answer options
Demographic variables
Gender	1	Gender	Female (1), Male (2)
Ethnicity	1	Ethnicity	African American (1), Puerto Rican (2)
Control variables
Delinquency at T1 (α =.78)	10	During the past 5 years, how often have you broken into a house or building that you were not supposed to be in?	Never (1) to 5 or more times (5)
Alcohol use at T1	1	How often do you drink beer, wine, or hard liquor?	Never (1) to 3 or more drinks every day
Peer deviance at T4 (α =.83)	3	How many of your friends have stolen something worth more than $5?	None (1) to most (4)
Educational level at T4	1	What year of school are you in? If not in school, what was last grade you completed?	11th grade or below (0) to post graduate degree (6)
Independent variable
Marijuana use at T1–T4	1 at T1–T4	How often have you ever used marijuana? at T1 How often have you used marijuana in the past 5 years? at T2–T4	Never (0) to once a week or more (4)
Dependent variables
Shooting or hitting someone with a weapon (gun or club) at T4	1	How often have you shot or hit someone with a weapon (gun or club)?	Never (0) to 5 or more times (4)
Holding a weapon (gun or club) to someone at T4	1	How often have you held a weapon (gun or club) to someone?	Never (0) to 5 or more times (4)
Stealing from someone (some place) without a weapon at T4	1	How often have you stolen from someone or some place without using a weapon?	Never (0) to 5 or more times (4)

Note. α = Cronbach’s alpha