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. Author manuscript; available in PMC: 2015 Feb 19.
Published in final edited form as: Exp Clin Psychopharmacol. 2014 Feb;22(1):75–85. doi: 10.1037/a0034863

Figure 1.

Figure 1

Opiate urinalysis results across consecutive urine samples for individual participants in each of the three experimental groups. Individual participant numbers are listed on the Y-axis. Horizontal lines represent opiate urinalysis results for individual participants across the consecutive scheduled urine collections of the study, ranked on the y-axis from most abstinence (top) to least abstinence (bottom). The filled squares in each line represent opiate-negative urinalysis results, the open squares represent opiate-positive urinalysis results, and the blank squares represent missing urine samples.