If a t test for dependent means is reported in a research article as "t (38)= 3.11,p

Question

If a t test for dependent means is reported in a research article as "t (38)= 3.11,p < .01," then
A)the result is significant.
B)the result is not significant.
C)you can assume a one-tailed test was used.
D)there were 39 degrees of freedom.

Quizplus · Accepted Answer

The t-value of 3.11 indicates a significant difference between the means. The degrees of freedom are 38, which suggests that the sample size was 40 (since df = n1 + n2 - 2 in a dependent t-test). The p-value is reported as p < .01, which means that the probability of obtaining this result by chance is less than .01. It is not clear from the information provided whether a one-tailed or two-tailed test was used.

If a T Test for Dependent Means Is Reported in a Research