Author Question: Which test is often used for the same kind of research study for which the sign test is appropriate? ... (Read 64 times)

TVarnum · **on:** Jun 20, 2018

Which test is often used for the same kind of research study for which the sign test is appropriate?

A) an independent-measures t test
B) a repeated-measures t test
C) a Pearson correlation
D) a chi-square test for goodness of fit

Question 2

In general, if the variance of the difference scores increases, then what will happen to the value of the t statistic?

A) It will increase (move farther toward the tail of the distribution).
B) It will decrease (move toward 0 at the center of the distribution).
C) It will stay the same; the t statistic is not affected by the variance of the difference scores.
D) It may increase or may decrease. There is no consistent relationship between variance and the size of the t statistic.