The null hypothesis for a repeated-measures test states:
A)each individual will have a difference score of D = 0.
B)the overall sample will have a mean difference of MD = 0.
C)the entire population will have a mean difference of μD = 0.
D)All of the other options are correct.

Question

Quizplus · Accepted Answer

The null hypothesis for a repeated-measures test is that the entire population will have a mean difference of μD = 0. This means that the difference between the pairs of measurements for each individual in the population is expected to be zero, on average. Therefore, option C is the correct choice. Options A and B are incorrect because they refer to individual or sample differences, respectively, instead of population differences. Option D is incorrect because only option C is correct.

The Null Hypothesis for a Repeated-Measures Test States