A research report describing the results from a repeated-measures t test states that "t(22)= 1.71, p .05." From this report,what was the outcome of the hypothesis test?
A)Reject the null hypothesis with a sample of n = 23 participants
B)Fail to reject the null hypothesis with a sample of n = 23 participants
C)Reject the null hypothesis with a sample of n = 22 participants
D)Fail to reject the null hypothesis with a sample of n = 22 participants

Question

A research report describing the results from a repeated-measures t test states that "t(22)= 1.71, p > .05." From this report,what was the outcome of the hypothesis test?
A)Reject the null hypothesis with a sample of n = 23 participants
B)Fail to reject the null hypothesis with a sample of n = 23 participants
C)Reject the null hypothesis with a sample of n = 22 participants
D)Fail to reject the null hypothesis with a sample of n = 22 participants

Quizplus · Accepted Answer

The outcome of the hypothesis test indicates that the p-value is greater than .05, which typically means there is not enough evidence to reject the null hypothesis. The degrees of freedom (df) for a repeated-measures t-test is n - 1, where n is the sample size. Given t(22), the sample size is 23 (since 22 + 1 = 23), leading to the conclusion to fail to reject the null hypothesis with a sample of n = 23 participants.

A Research Report Describing the Results from a Repeated-Measures T