Weapon-bias experiments
Payne (2001) briefly showed participants a Black or White face and then asked them to judge whether the object that followed was a gun or a tool. Guns were identified faster after Black faces, and under time pressure participants more often mistook tools for guns. Payne explained that the bias arises from automatic stereotypic associations combined with situations in which they cannot be controlled, even without intentional prejudice. Payne (2006) summarized this as weapon bias, noting that it grows under conditions that weaken control, such as time pressure and fatigue.
The shooter task and police studies
Correll and colleagues (2002) had participants quickly press "shoot" or "don't shoot" when a Black or White man holding a gun, cell phone or wallet appeared against various backgrounds. Participants shot armed Black targets faster and mistakenly shot unarmed Black targets more often. The bias was related less to personal prejudice than to awareness of cultural stereotypes linking Black people with danger, and it appeared among Black participants as well. Greenwald and colleagues (2003) replicated similar results. Correll and colleagues (2007) reported that police officers also showed bias in response times, but less bias in mistaken shooting than civilians.
Meta-analysis and reduction
Mekawi and Bresin (2015) meta-analyzed shooter-task studies and confirmed a consistent tendency to shoot Black targets faster and to adopt a lower threshold for deciding to shoot them, although the size of error-rate differences varied by study conditions. Plant and Peruche (2005) reported that bias declined when police officers repeatedly practiced a task in which race was unrelated to whether a target was armed. These studies show that stereotypes formed, for example, through illusory correlation can affect life-or-death judgments, and they underscore the importance of training and of policies that allow time for decisions.
FAQ
- What is shooter bias in simple terms?
- When deciding in a split second whether to shoot, people shoot faster or make different mistakes depending on the target's race.
- Can the bias be reduced?
- Research suggests that training in which race is repeatedly unrelated to danger, and allowing more time to decide, help reduce it.
Sources reviewed: 2026-10-26
References
- Payne, B. K. (2001). Prejudice and perception: The role of automatic and controlled processes in misperceiving a weapon. Journal of Personality and Social Psychology, 81(2), 181–192. The weapon-identification paradigm.
- Correll, J., Park, B., Judd, C. M., & Wittenbrink, B. (2002). The police officer's dilemma: Using ethnicity to disambiguate potentially threatening individuals. Journal of Personality and Social Psychology, 83(6), 1314–1329. Introduced the first-person shooter task.
- Greenwald, A. G., Oakes, M. A., & Hoffman, H. G. (2003). Targets of discrimination: Effects of race on responses to weapons holders. Journal of Experimental Social Psychology, 39(4), 399–405. Replication varying race and role.
- Plant, E. A., & Peruche, B. M. (2005). The consequences of race for police officers' responses to criminal suspects. Psychological Science, 16(3), 180–183. Practice reduces officers' bias.
- Payne, B. K. (2006). Weapon bias: Split-second decisions and unintended stereotyping. Current Directions in Psychological Science, 15(6), 287–291. Review of automatic and controlled processes.
- Correll, J., Park, B., Judd, C. M., Wittenbrink, B., Sadler, M. S., & Keesee, T. (2007). Across the thin blue line: Police officers and racial bias in the decision to shoot. Journal of Personality and Social Psychology, 92(6), 1006–1023. Compares police officers with civilians.
- Mekawi, Y., & Bresin, K. (2015). Is the evidence from racial bias shooting task studies a smoking gun? Results from a meta-analysis. Journal of Experimental Social Psychology, 61, 120–130. Meta-analysis of shooter-task studies.