Justine decides to test the effects of playing violent video ...

[penza]

Justine decides to test the effects of playing violent video games on aggressiveness in 10-year old boys. She decides to have all boys play the three different types of video games in a randomized counterbalanced order.
 
  The levels of the within-subjects independent variable are violent, exciting but not violent, and neither exciting nor violent. After playing each video game each child takes a test designed to measure their level of aggression. What is the appropriate type of statistical test for Justine to use?
   
 a. one-way analysis of variance
   b. two-way analysis of variance
   c. one-way repeated measures analysis of variance
   d. two-way mixed model analysis of variance

Question 2

Correlational research does not establish __________.
 
  a. cause and effect.
  b. similarities among variables.
  c. differences among variables.
  d. significant effects.

[sarajane1989]

Answer to Question 1

C

Answer to Question 2

A