Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-multiplelineairregression-002-en_vufgb-multiplelineairregression-002-en
   name	vufgb-multiplelineairregression-002-en
   section	Inferential Statistics/Regression/Multiple linear regression
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Reasoning

   Question

   A simple linear regression shows a positive association between the stress hormone cortisol ($x_{1}$) and depressive symptoms (y). When in a multiple linear regression, one statistically controls for negative life events ($x_{2}$), the association between cortisol and depressive symptoms disappears. This is because negative life events cause both higher cortisol levels as well as more depressive symptoms. Which multivariate relationship is this?

   
   
   1. TRUE: Spurious relationship.
   2. FALSE: Chain relationship.
   3. FALSE: Simpson’s paradox.
   4. FALSE: Suppressor effect.
   
   
   1. Correct
   2. Incorrect
   3. Incorrect
   4. Incorrect