Question

A researcher believes that a new training program will increase test scores. Previous research shows that test scores increase 8 points between the first and second administration of the test being used. This researcher believes his training program will cause a significant increase, beyond the expected 8 points. If a paired-samples t test is used by this researcher, what value would he expect to be at the center of the comparison distribution, a distribution of mean differences

Answer 1

value = 8

Explanation:

when a paired-samples t test is used by this researcher we will write out the hypothesis as follows

H0: μd ≤ 8 ( null )

Ha: μd > 8 ( alternate )

Given the above Hypothesis

If a paired-sample T test is used by the researcher the value that would be at the center of the comparison will be 8