If a correlated-groups t test and an independent-groups t test both have df = 16, how many subjects ...

If a correlated-groups t test and an independent-groups t test both have df = 16, how many subjects were in each study?

a. There were 16 subjects in both studies.
b. There were 17 subjects in both studies.
c. There were 17 subjects in the correlated groups and 18 subjects in the independent groups.
d. There were 18 subjects in the correlated groups and 17 subjects in the independent groups.

Question 2

If a correlated-groups t test and an independent-groups t test both have df = 16, which experiment used more subjects?

a. Both used the same number of subjects (N = 18).
b. Both used the same number of subjects (N = 17).
c. The correlated-groups t test (N = 17) used more subjects.
d. The independent-groups t test (N = 18) used more subjects.

Question 3

If a researcher reported for a correlated-groups t test that t(22) = 2.69, p < .01, how many subjects were there in the study?

a. 23
b. 20
c. 22
d. 21

Question 4

If a researcher reported for a correlated-groups t test that t(12) = 3.66, p < .01, how many subjects were there in the study?

a. 12
b. 14
c. 13
d. 11

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If a correlated-groups t test and an independent-groups t test both have df = 16, how many subjects ...

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