Abstract
Research on police officers has found that they tend to associate African Americans with threat. Little is known however about the stability of implicit racial bias in police officers, whose attitudes could be expected to fluctuate based on their day-to-day encounters or from internal stressors such as fatigue. To investigate, this study tested 80 police officers using the Weapons Implicit Association Test (IAT) on four separate occasions. Officers’ sleep was also monitored using wrist actigraphy. Officers’ IAT scores varied significantly across the testing days ( f = 2.36; df = 1.468; p < .05), and differences in IAT scores were associated with officers’ sleep ( f = 6.49; df = 1.468; p < .05). These findings indicate that implicit racial bias was not stable among officers, and that when officers slept less prior to testing they demonstrated stronger association between Black Americans and weapons. The implications of these findings within the current climate of police–citizen unrest are discussed.
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