Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufgb-multiplelineairregression-008-en_vufgb-multiplelineairregression-008-en
   name	vufgb-multiplelineairregression-008-en
   section	Inferential Statistics/Regression/Multiple linear regression
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Reasoning

   Question

   Single linear regression shows a positive relationship between the stress hormone cortisol ($x_{1}$) and depressive symptoms (y). However, when a multiple linear regression statistically controls for negative life events ($x_{2}$), the link between cortisol and depressive symptoms disappears. This is because negative life events lead to both higher cortisol levels and more depressive symptoms. What type of 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