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 practically or clinically important: would you say that the effects of X1 on Y are partially or completely mediated by X2?
Answer to relevant QuestionsIn Figure 16.1, suppose that you initially find that path c (the total effect of X1 on Y) is not statistically significant and too small to be of any practical or clinical importance. Does it follow that there cannot ...Draw two overlapping circles to represent the shared variance between A (the treatment or group membership variable) and Y (the outcome variable). Now draw three overlapping circles to represent the shared variance among Y ...In general, if p is the number of predictor variables and k is the number of groups for the outcome variable in a DA, how many different discriminant functions can be obtained to differentiate among groups? (This question ...For each of the following sentences, fill in the correct term (increases, decreases, or stays the same): As Wilks’s Lambda increases (and assuming all other factors remain constant), the multivariate F associated with ...Three different methods were presented for the computation of scale scores: summing raw scores on the X variables, summing z scores on the X variables, and saving factor scores from a FA of a set of X variables. (Assume that ...
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