data from Differences in the Validity of Self-Reported Drug Use Across Five Factors in Indianapolis, Fort Lauderdale, Phoenix, and Dallas, 1994 (ICPSR Study Number 2706, Rosay and Herz (2000), from the Arrestee Drug Abuse Monitoring (ADAM) Program/Drug Use Forecasting, ICPSR Study Number 2826. The original purpose of the study was to understand the accuracy of self-reported drug use, which is a difficult problem for obvious reasons.
The variables included in the dataset are:
AGEGRP 1 for 1,700 cases 18 through 30 years old, 2 for 1,265 cases 31 years old or over
COCSELF indicating self-reported cocaine usage prior to arrest (0 for 2,220 negative responses, 1 for 745 positive responses)
MJTEST a dichotomous variable indicating a positive urine test for marijuan
RACE 1 for 1,554 black cases, 2 for 1,411 white cases
SEX 1 for 2,213 male cases, 2 for 752 female cases
SITE coded according to: Indianapolis = 1 (759 cases), Ft. Lauderdale = 2 (974 cases),Phoenix = 3 (646 cases), and Dallas = 4 (586 cases)
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