Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Twoway-ANOVA-802-en_uu-Twoway-ANOVA-802-en
   name	uu-Twoway-ANOVA-802-en
   section	Inferential Statistics/Parametric Techniques/ANOVA/Twoway ANOVA
   type	schoice
   solution	FALSE, TRUE, FALSE, FALSE
   Type	Case
   Language	English
   Level	Statistical Literacy

   Question

   The researchers randomly selected the students from program files. Closer inspection reveals that there are several students in the sample who have a double major. The grades of a few students are listed under both Social Science and Languages. The grades of two more students are listed under both Econ/Political Science and Languages.

   Which condition of the two-way ANOVA did the researchers violate with this?

   
   
   1. FALSE: Random sample
   2. TRUE: Independence of observations
   3. FALSE: Equal variances
   4. FALSE: Normal distribution of numbers
   
   
   1. This condition is not violated, since a random sample was drawn, or a random sample
   2. This condition is violated since there are students who are in more than 1 of the groups. It is important in an ANOVA that there are independent groups. This is not the case.
   3. This condition is an important one with this test, but this is not what the question is about.
   4. This condition is an important one with this test, but this is not what the question is about