Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_uu-Twoway-ANOVA-814-en_uu-Twoway-ANOVA-814-en
   name	uu-Twoway-ANOVA-814-en
   section	Inferential Statistics/Parametric Techniques/ANOVA/Twoway ANOVA
   type	schoice
   solution	FALSE, FALSE, FALSE, TRUE
   Type	Case, Conceptual, Interpretating output
   Program	SPSS
   Language	English
   Level	Statistical Literacy

   Question

   The following is claimed about two-way analysis of variance:

   I. Both independent variables must be of at least interval measurement level. II. If there is significant interaction between the independent variables, there must also be at least one significant main effect.

   Which of these statements is/are correct?

   
   
   1. FALSE: Only I
   2. FALSE: II only
   3. FALSE: I and II
   4. TRUE: Neither I nor II
   
   

   Solution

   In an ANOVA, the independent variables (or factors) are always group/categorical variables. These are precisely of nominal or ordinal level of measurement. These two levels of measurement are precisely lower than interval. There are situations where the main effects are not significant, but the interaction effect is.

   
   
   1. This answer is incorrect.
   2. This answer is incorrect.
   3. This answer is incorrect.
   4. This answer is correct.