Participants are randomly assigned to one of two groups. The first group watches a violent film, and the other watches a nonviolent film. Afterwards, the aggressive affect is measured, and it is desired to compare three groups, taking gender and degress into account as well.
A data frame with 4 variables and 68 observations:
no degree vs. degree
36 males, 32 females
violend vs. nonviolent
Artificial dataset from Wilcox book (p. 316).
Wilcox, R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Elsevier.
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