A researcher reports an independent-measures t statistic with df = 16.How many participants were in the entire study?
A)17
B)18
C)33
D)34

Question

Quizplus · Accepted Answer

For an independent-measures t-test, the degrees of freedom (df) are calculated as the sum of the sample sizes of the two groups minus 2 (df = n1 + n2 - 2). Given df = 16, solving for the total number of participants (n1 + n2) gives us 18 (16 + 2 = 18).

A Researcher Reports an Independent-Measures T Statistic with Df =