What is multicollinearity in multiple regression, and why is it a problem?
Answer to relevant QuestionsHow can you report the effect size and significance test for each individual predictor variable? Why is it acceptable to use a dichotomous predictor variable in a regression when it is not usually acceptable to use a categorical variable that has more than two values as a predictor in regression? Do the following analysis using the hypothetical data in Table 13.7. In this imaginary experiment, participants were randomly assigned to receive either no caffeine (1) or 150 mg of caffeine (2); and to a no exercise ...What information should be included in the report of a hierarchical or statistical multiple regression (i.e., a series of regressions with one variable or a group of variables entered in each 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 ...
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