Participants also completed three IATs corresponding to the explicit bias questions. The Race Preference IAT measured implicit association of white and black race with good and bad terms. We created the next two IATs specifically for this study. The Race Cooperativeness IAT measured implicit associations between race and general cooperativeness. The Race Medical Cooperativeness IAT measured implicit associations between race and cooperativeness with medical recommendations. All IAT scores are expressed as normally distributed continuous variables. For efficiency we used a 5-block structure for the IATs, with the specific pairing received first (e.g., black-bad/white-good) counterbalanced across participants. We scored IATs according to published guidelines with zero representing no racial bias, positive values representing prowhite bias, and negative scores representing problack bias (range typically −0.6 to 1.2).21 Figure 1 shows the faces representing white or black race and the terms used as stimuli for the concepts of good/bad and cooperativeness/uncooperativeness.
