When do you use each of the two post hoc tests discussed in this chapter?
Answer to relevant Questions(a) When is it appropriate to compute the effect size in a two-way ANOVA? (b) For each effect, what does the effect size tell you? A researcher examines performance on an eye–hand coordination task as a function of three levels of reward and three levels of practice, obtaining the following cell means: (a) What are the main effect means for reward, ...(a) How do you recognize a two-sample t-test design? (b) What must be true about the dependent variable? (c) Which versions of the t-test are available? For a 2 × 2 ANOVA, describe the following in words: (a) The statistical hypotheses for factor A, (b) The statistical hypotheses for factor B, and (c) The statistical hypotheses for A × B. Select the noparametric procedure to use when we study: (a) The effect of a pain reliever on rankings of the emotional content of words describing pain. One group is tested before and after taking the drug. (b) The effect of ...
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