What is centering? How do you center scores on a quantitative predictor variable in SPSS?
Answer to relevant QuestionsBriefly 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 the homogeneity of regression assumption? Why is a violation of this assumption problematic? How can this assumption be tested? Describe two research situations where DA can be used: one situation where the primary interest is in group classification and another situation where the primary interest is in the description of the nature of group ...Explain how MANOVA is related to DA. What is the difference between α and standardized α? Why does it make sense to sum z scores rather than raw scores across items in some situations?
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