Figure 3.

Cocaine urinalysis results across consecutive urine samples for individual participants in each of the two experimental conditions. The vertical dashed lines divide each panel into two periods, baseline (left) and intervention (right). Within each panel, horizontal lines represent the cocaine urinalysis results for individual participants across the consecutive scheduled mandatory urine-collection days. The heavy portion of each line represents cocaine-negative urinalysis results, the thin portion of each line represents cocaine-positive urinalysis results, and the blank portions represent missing urine samples. Within each panel, participants are arranged from those showing the least abstinence (fewest cocaine-negative urines) on the bottom to those with the most abstinence on the top.