Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-moderation-300-en_vufgb-moderation-300-en
   name	vufgb-moderation-300-en
   section	Inferential Statistics/Regression/Multiple linear regression/Moderation
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Program
   Language	English
   Level	Statistical Literacy

   Question

   A researcher first wants to center the predictors in a model before looking at interaction between predictors.

   What formula creates a centered variable?

   
   
   1. TRUE: $X_{1}-M_{X_{1}}$
   2. FALSE: $(X_{1}-M_{X_{1}})/SD_{X_{1}}$
   3. FALSE: $X_{1}+M_{X_{1}}$
   4. FALSE: $(X_{1}+M_{X_{1}})/SD_{X_{1}}$
   
   
   1. Correct
   2. Incorrect
   3. Incorrect
   4. Incorrect