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The purpose of this study is to ensure we can replicate Verbal Overshadowing (VO) without any exclusion criteria and ensure that our new distractor tasks do not alter the VO phenomenon. The results from the correct mTurk run of VO in the Registered Replication Report (Alogna et al., 2014) showed an effect of *b* = -.084 when analyzed using no exclusion criteria (*p* = .037, 95%CI = -.164 to -.005). Given that the VO group was less accurate in their lineup judgments (M = 46.7%, n = 302) than if they had not verbalized the description of the bank robber (M = 55.1%, n = 312) and a standard deviation in the DV of .5 (SD = .5003121), this corresponds to an effect size of **d** = -0.169 (Wilson, n.d.). Thus, to achieve 80% power with no exclusions applied we will need 1,096 participants. power twomeans 0 -0.1694 Performing iteration ... Estimated sample sizes for a two-sample means test t test assuming sd1 = sd2 = sd Ho: m2 = m1 versus Ha: m2 != m1 Study parameters: alpha = 0.0500 power = 0.8000 delta = -0.1694 m1 = 0.0000 m2 = -0.1694 sd = 1.0000 Estimated sample sizes: N = 1096 N per group = 548 These 1,096 will be drawn in a stratified way with unequal probabilities of selection, so that the people who complete each survey will resemble the nation's adult population (according to the most recently available Current Population Survey, conducted by the U.S. Census Bureau) in terms of gender, age, education, ethnicity (Hispanic vs. not), race (allowing each respondent to select more than one race), region, and income. **References** Alogna, V. K., Attaya, M. K., Aucoin, P., Bahník, Š., Birch, S., Birt, A. R., ... & Buswell, K. (2014). Registered replication report: Schooler and engstler-schooler (1990). Perspectives on Psychological Science, 9(5), 556-578. Wilson, D. B., Ph.D. (n.d.). Practical Meta-Analysis Effect Size Calculator [Online calculator]. Retrieved April 30, 2020, from https://campbellcollaboration.org/research-resources/effect-size-calculator.html
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