Give your rationale for your selectedīeta/alpha ratio. Use the compromise function to compute alpha and beta for a sampleĪpproximately half the size. 23 groupsAssume that the result is a sample size beyond what you can obtain. Calculate the sample size needed given these factors:ĪNOVA (fixed effects, omnibus, one-way)small effect sizealpha =.05beta =. That your study is worth doing with the smaller sample.Ģ. Use the compromise function to compute alpha and beta for a sample half 2Assume that the result is a sample size beyond what you can obtain. One-tailed t-test with two independent groups of equal sizesmall effect size (see Piasta, S.B.,
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