Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-moderation-013-en_vufgb-moderation-013-en
   name	vufgb-moderation-013-en
   section	Inferential Statistics/Regression/Multiple linear regression/Moderation, Inferential Statistics/Regression
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Program
   Language	English
   Level	Statistical Literacy

   Question

   Miriam hypothesized an interaction between two quantitative predictors ($X_{1}$ and $X_{2}$) in their effect on a quantitative outcome measure (Y).

   How can she best include the interaction in her regression model?

   
   
   1. TRUE: Cross product between centered $X_{1}$ and centered $X_{2}$ calculate and include.
   2. FALSE: Cross product between uncentered $X_{1}$ and uncentered $X_{2}$ calculate and take.
   3. FALSE: Cross product between centered $X_{1}$ and centered Y calculate and include.
   4. FALSE: Cross product between uncentered $X_{1}$ and uncentered Y compute and record.
   
   
   1. Correct
   2. Incorrect
   3. Incorrect
   4. Incorrect