Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Multiple-linear-regression-817-en_uu-Multiple-linear-regression-817-en
   name	uu-Multiple-linear-regression-817-en.Rmd
   section	Inferential Statistics/Regression/Multiple linear regression
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	Conceptual
   Language	English
   Level	Statistical Literacy

   Question

   In a sample of UCU students, you want to investigate whether the personality trait “extraversion” predicts the number of off-campus friends a student has. However, you are concerned that your results might be influenced by the fact that Dutch students might have more off-campus friends than international students, on average. How could you best address this problem?

   
   
   1. TRUE: Use multiple regression, controlling for the ethnicity of a student (International vs Dutch)
   2. FALSE: Use multiple regression, controlling for the number of friends a student has
   3. FALSE: Use multiple regression, including an interaction between ethnicity of a student (International vs Dutch) and number of friends
   4. FALSE: The samples are not comparable; conduct separate analyses for Dutch and international students
   
   
   1. This answer is correct.
   2. This answer is incorrect.
   3. This answer is incorrect.
   4. This answer is incorrect.