What information do you need to judge the statistical significance, and the effect size for each of these sources of variance: A, B, and A x B?
Answer to relevant QuestionsIf there is a statistically significant interaction: how can you remove the main effects of A and B from the cell means in order to see the interaction effects alone more clearly? What parts of the information that is reported for standard versus hierarchical regression are identical? What parts are different? What kind of reasoning would justify a decision to enter some variables earlier than others in a hierarchical regression analysis? Briefly comment on the difference between the use of a bootstrapped CI (for the unstandardized estimate of a * b) versus the use of the Sobel test. What programs can be used to obtain the estimates for each case? Which ...What is a covariate?
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