8. The average effect size in social psychology is around d = 0.21. Conventionally, a sample over 30 individuals is considered 'large. If we are running an experiment for which we will perform a two-tailed test t-test and we have 30 individuals in each of the two conditions, what is our predicted power? (use the standard alpha)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
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Chapter11: Data Analysis And Probability
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8. The average effect size in social psychology is around d = 0.21. Conventionally, a sample over 30
individuals is considered 'large. If we are running an experiment for which we will perform a
two-tailed test t-test and we have 30 individuals in each of the two conditions, what is our
predicted power? (use the standard alpha)
Transcribed Image Text:8. The average effect size in social psychology is around d = 0.21. Conventionally, a sample over 30 individuals is considered 'large. If we are running an experiment for which we will perform a two-tailed test t-test and we have 30 individuals in each of the two conditions, what is our predicted power? (use the standard alpha)
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