The standard deviation of the sampling distribution of mean difference scores is referred to as the _____ of difference scores.
A)mean difference
B)variance
C)standard error of the mean
D)sampling error

Question

Quizplus · Accepted Answer

The standard deviation of the sampling distribution of mean difference scores is referred to as the standard error of the mean. This is because it measures the variability in the means of different samples and serves as an estimate of the standard deviation of the population from which the samples were drawn. The mean difference score is the difference between two means (e.g. treatment group mean and control group mean), while variance refers to the spread or dispersion of the data, and sampling error is the degree to which a sample differs from the population.

The Standard Deviation of the Sampling Distribution of Mean Difference