If 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?
Answer to relevant QuestionsHow is a weighted average of group means, different from an unweighted average of group means? What is the “weighting” factor? Under what circumstances would each type of mean be preferred? What is an R2inc? How is the R2inc for a single variable that enters in a particular step related to the srinc2 for that same single variable in the same step? Suppose a researcher runs a “forward entry” statistical multiple regression with a group of 20 candidate predictor variables; the final model includes five predictors. Why are the p values shown on the SPSS printout not ...Refer to Figure 16.1. If a, b, and a*b are all statistically significant (and large enough to be of practical or clinical importance), and c’ is not statistically significant and/or not large enough to be judged ...What information is needed to judge whether scores on the covariate (Xc) differ across groups? What information is needed to assess whether scores on the covariate X are strongly linearly related to Y (the dependent ...
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