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Fields Changed

Registration

Field Before After
Last Published September 04, 2023 06:21 AM November 06, 2023 09:00 AM
Planned Number of Clusters 160 groups There are 10 groups that are in the first phase, randomize to be pure control. 80 groups There are 5 groups that are in the first phase, randomize to be pure control.
Planned Number of Observations 1200 students 600 students
Sample size (or number of clusters) by treatment arms 76 treated groups ~ 400 students 84 control groups ~ 500 students 33 treated groups ~ 250 students 48 control groups ~ 350 students
Power calculation: Minimum Detectable Effect Size for Main Outcomes 0.09 on enrollment outcomes 0.18 on learning outcomes 0.12 on enrollment outcomes 0.23 on learning outcomes
Secondary Outcomes (Explanation) Game in the field to measure the relationship between effort and goals setting Game in the field
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