Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-ancova-2074-en_vufsw-ancova-2074-en
   name	vufsw-ancova-2074-en
   section	inferential statistics/parametric techniques/anova/ancova
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	interpreting output
   Program	NA
   Language	English
   Level	statistical reasoning

   Question

   In an experiment, participants were randomly divided into two groups (group variable: ERROR_APPROACH) who had to perform a task. The two groups were instructed differently beforehand: error prevention (” you are not allowed to make mistakes” ) and error management (” you are allowed to make mistakes make mistakes, you learn from them”). Below is a series of AN(C)OVA analyses TRUE examined whether error-approach affects how well the task was performed (PERFORMANCE). SELFCONTROL (degree of self-discipline, measured prior to the experiment) is a covariate in these analyses a covariate.

   

   How do you test whether the assumption of the ‘homogeneity of regression slopes’ of ANCOVA met?

   
   
   1. TRUE: By adding to analysis 2 the interaction between self-control and error-approach to analysis 2, the F value of the interaction effect between the two tests the assumption
   2. FALSE: By adding to analysis 2 the interaction between selfcontrol and error-approach to analysis 2; the F value of the ‘corrected model’ tests this assumption
   3. FALSE: By taking self-control as the dependent variable and error-approach as the independent variable. as independent; the F value of the ‘corrected model’ tests this assumption
   4. FALSE: By taking self-control as dependent variable and error-approach as independent as independent; the F value of the interaction effect between the two tests the assumption
   
   
   1. True
   2. False
   3. False
   4. False