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.
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