Aresearcher 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 normally distributed and the variances across groups were similar. what test should be used to analyse the data?

I believe that the test that should be used in order to analize these data is the one-way analysis of variance (ANOVA). This test is used to measure the differences between 2 or more independent groups.

Explanation:

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.