In general,what characteristics of the difference scores are most likely to produce a significant t statistic for the repeated-measures hypothesis test?
A)a large number of scores and a large variance
B)a large number of scores and a small variance
C)a small number of scores and a large variance
D)a small number of scores and a small variance

Question

In general,what characteristics of the difference scores are most likely to produce a significant t statistic for the repeated-measures hypothesis test?​
A)​a large number of scores and a large variance
B)​a large number of scores and a small variance
C)​a small number of scores and a large variance
D)​a small number of scores and a small variance

Quizplus · Accepted Answer

A large number of scores increases the power of the test, but having a small variance in the difference scores indicates that the condition is having a consistent effect and reduces the amount of noise in the data, making it easier to detect a significant difference.

In General,what Characteristics of the Difference Scores Are Most Likely