A researcher measured people’s physiological reactions while watching horror films and compared them to when watching erotic films and a documentary about wildlife. Different people viewed each type of film. The resulting data were skewed. What test should be used to analyse the data?
a. Independent analysis of variance.
b. Repeated measures analysis of variance.
c. Kruskal–Wallis test.
d. Friedman’s ANOVA.
c. Kruskal–Wallis test.
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