AEA RCT Registry

Field	Before	After
Last Published	August 09, 2021 06:29 AM	September 11, 2021 04:14 PM
Planned Number of Clusters	I plan to ran 7 sessions per treatment with a minimum of 12 subjects to achieve a power of 0.9.	I plan to ran 7 sessions per treatment with a minimum of 12 subjects.
Power calculation: Minimum Detectable Effect Size for Main Outcomes	One-sided Wilcoxon-Mann-Whitney-Test, alpha = 0.05, Power = 0.9 and allocation ratio of 1 yields a sample size (a group) per treatment of 19 (assumptions: mean group Non-Linear equals 5, SD = 2; mean group Quasi-Linear equals 3, SD = 2).	I changed from a partner- to a stranger-matching protocol shortly before the experiment, but did not changed the power calculation because the theory predicts actual values. However, in order to be as transparent as possible, I present the power calculation in the following. One-sided Wilcoxon-Mann-Whitney-Test, alpha = 0.05, Power = 0.9 and allocation ratio of 1 yields a sample size (a group) per treatment of 19 (assumptions: mean group Non-Linear equals 5, SD = 2; mean group Quasi-Linear equals 3, SD = 2).
Building on Existing Work		No

Fields Changed