Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-equation-0157-en_vufsw-equation-0157-en
   name	vufsw-equation-0157-en
   section	inferential statistics/regression/equation
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE, FALSE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical literacy

   Question

   For her Master thesis, a student used an experimental design to investigate whether test persons who had to read an unfavourable news item gave a less positive assessment of the image of a certain company than test persons who had to read a neutral news item. The assessment was measured on a scale from 1 (very negative) to 5 (very positive).

   Transform the data below into a regression equation. The dependent variable (Y) is the rating of the image (“Rating”) and the independent variable (X) indicates the group (“EXPGROEP= experimentele groep, groep 1”), where the control group (“controle groep, groep 2”) is the reference category (control group = 0; experimental group = 1).

   The results show that the mean rating of the two groups is as follows:

   

   
   
   1. FALSE: Rating = 3,20 + 0,40 * EXPGROEP
   2. TRUE: Rating = 3,60 – 0,20 * EXPGROEP
   3. FALSE: Rating = 0,20 + 3,40 * EXPGROEP
   4. FALSE: Rating = 3,40 – 3,60 * EXPGROEP
   5. FALSE: Rating = 3,40 – 0,20 * EXPGROEP
   6. FALSE: Rating = 3,60 + 3,40 * EXPGROEP
   
   
   1. False
   2. True
   3. False
   4. False
   5. False
   6. False