Author Question: If a research article presented the results of an analysis of variance as, F(2, 38 ) = 3.60, p< ... (Read 128 times)

ssal · **on:** Jun 20, 2018

If a research article presented the results of an analysis of variance as, F(2, 38 ) = 3.60, p< .05, then how many groups were there in the study?

A) 2
B) 3
C) 40
D) 41

Question 2

The correct argument for using a two-tailed test, even if there is a clear basis for predicting a result in a given direction, is that

A) if the null hypothesis is in fact true, rejecting it will provide stronger evidence in support of it.
B) one-tailed tests cannot be used in most studies involving one or two groups.
C) if an unexpected result that is opposite of what is predicted occurs, it does not have to be ignored.
D) a two-tailed test improves the chance of getting a statistically significant result.