Two factors influence the size of the standard error of the mean: the _____ and the _____.
A)sample standard deviation;sample variance
B)population size;variability of scores in the population
C)sample size;variability of scores in the population
D)sum of squares;error variance

Question

Quizplus · Accepted Answer

The size of the standard error of the mean is influenced by the sample size and the variability of scores in the population. As the sample size increases, the standard error decreases, and as the variability of scores in the population increases, the standard error increases. Therefore, the correct answer is C, sample size and variability of scores in the population.

Two Factors Influence the Size of the Standard Error of the Mean