### Project goal To better determine the degree to which power improves motor performance by conducting direct and conceptual replications of Burgmer & Englich's finding that manipulating power substantially improves scores at golf and at darts [Burgmer, P., &Englich, B. (2012). Bullseye!: How Power Improves Motor Performance. Social Psychological and Personality Science, 4(2), 224–232.] ### Project stutus: Complete. 5 replications have now been attempted. All materials, data, and analyses have been posted here. A manuscript describing this work is now published: Cusack, M., Vezenkova, N., Gottschalk, C., & Calin-Jageman, R. J. (2015). Direct and conceptual replications of Burgmer & Englich (2012): Power may have little to no effect on motor performance. PLOS ONE, 10(11), e0140806. [http://doi.org/10.1371/journal.pone.0140806][1] ### Prior registrations: This project was registered prior to each online replication effort to lock in design, sampling plan, and analysis plan. The 3 in-person replications were not pre-registered as they were conducted before we became aware of the OSF. **NOTE**: These pages were substantially re-organized. During intial registration, different components were created for different studies. This proved, however, confusing and lead to deletion of these many sub-components for a more streamlined organization. Expect, though, that the pre-collection registrations will have a somewhat different organization. ### Task demonstrations - Demo of the mirror-tracing task: available [here][2] - Demo of word-search task: is available [here][3] ## Abstract of published manuscript: Burgmer and Englich (2012) have reported that manipulating feelings of power can substan- tially improve performance on two motor tasks: golf and darts. We conducted two high-pow- ered direct replications of the effects of power on golf, two online conceptual replications using mirror-tracing as a performance measure, and an additional conceptual replication using a cognitive performance measure (word-search). Overall, we found little to no effect of power on motor skill (d = 0.09, 95% CI[-0.07, 0.22], n = 603).We varied task difficulty, re- analyzed data without participants showing weak responses on manipulation checks, and tried adjusting performance scores for age, gender, and initial task skill. None of these sec- ondary analyses revealed a strong effect of power on performance. A meta-analysis inte- grating our data with Burgmer & Englich leaves open the possibility that manipulating power could provide a modest boost in motor skill (d = 0.19, 95% CI [0.001, 0.38], n = 685). Unfor- tunately, the pattern of performance changes we observed was unrelated to group differ- ences in perceived and rated power, suggesting that what motor effects do occur with this protocol may not be directly related to the construct of power. [Burgmer, P., &Englich, B. (2012). Bullseye!: How Power Improves Motor Performance. Social Psychological and Per- sonality Science, 4(2), 224–232.] [1]: http://doi.org/10.1371/journal.pone.0140806 [2]: http://calin-jageman.net/lab/mirror_tracing/ [3]: http://calin-jageman.net/lab/word_search/