A researcher measured a group of people's physiological reactions while watching horror films and compared them to when watching comedy films. The resulting data were normally distributed. What test should be used to analyse the data?
A)Independent t-test.
B)Mann-Whitney test.
C)Wilcoxon signed-rank test.
D)Paired-samples (dependent or related) t-test.

Question

Quizplus · Accepted Answer

A paired-samples (dependent or related) t-test is appropriate when comparing the same group of participants' physiological reactions to both the horror and comedy films. This is because the data are normally distributed, and the participants are being compared to themselves in two different conditions.

A Researcher Measured a Group of People's Physiological Reactions While