Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_eur-inferential_statistics-218-en_eur-inferential_statistics-218-en
   name	eur-inferential_statistics-218-en
   section	Inferential Statistics/Regression/Slope, Assumptions, Inferential Statistics/Regression/Simple linear regression
   type	schoice
   solution	FALSE, FALSE, TRUE, FALSE
   Type	Conceptual
   Program
   Language	English
   Level	Statistical Literacy

   Question

   When the interaction between the between-subjects factor and the covariate is significant, which assumption of ANCOVA is statistically violated?

   
   
   1. FALSE: linearity of the relationship between the variables
   2. FALSE: normality of residuals
   3. TRUE: homogeneity of regression slopes
   4. FALSE: independence of the covariate and the between-subjects factor
   
   

   Solution

   A significant interaction indicates that the slopes of the different groups differ significantly from each other. The assumption of the homogeneity of the slopes is thus violated.

   All other assumptions cannot be assessed with the information we currently possess.

   
   
   1. False
   2. False
   3. True
   4. False