Figure 4From: Detecting cocaine use? The autobiographical implicit association test (aIAT) produces false positives in a real-world settingIndividual cocaine and heroin D-scores. (a) Relationship between cocaine and heroin D-scores; line represents the simple linear regression model fitted to the group data independently, with 95%CI of the mean. (b) Dispersion of cocaine D-scores in the cocaine user and non-user comparison groups.Back to article page