Exam 1

1. Metainformation

   Tag	Value
   file	Inferential_Statistics_vufsw-manova-1043-en_vufsw-manova-1043-en
   name	vufsw-manova-1043-en
   section	inferential statistics/parametric techniques/anova/manova
   type	schoice
   solution	TRUE, FALSE, FALSE, FALSE
   Type	conceptual
   Program	NA
   Language	English
   Level	statistical reasoning

   Question

   Which of the following statements is true about MANOVA

   I. MANOVA controls for the overall error rate, ensuring that the risk of Type I errors does not increase.
   II. MANOVA is suitable to study the effect of an experimental manipulation on dependent variables which are not correlated with each other.

   
   
   1. TRUE: Statement I is correct and statement II is incorrect.
   2. FALSE: Statement I is incorrect and statement II is correct.
   3. FALSE: Both statements are correct.
   4. FALSE: Both statements are incorrect.
   
   

   Solution

   By analyzing simultaneously several dependent variables MANOVA corrects for the familywise error rate. Thus, the statement “It controls for the overall error rate, ensuring that the risk of Type I errors does not increase.” is correct.

   MANOVA studies the effect of (at least one) independent variable on several dependent variables that are correlated with each other. If they are uncorrelation with each other, MANOVA makes no sense. therefore the statement" It is suitable to study the effect of an experimental manipulation on dependent variables which are not correlated with each other." is incorrect

   
   
   1. True
   2. False
   3. False
   4. False