If an experimenter conducts a t-test to see whether the responses of subjects in a control group differ from those of an experimental group, which of the following outcomes will yield the highest t-value?
A)If there are 30 subjects in each condition and mean difference between the responses of the control group and the experimental group is 2 and both have standard deviations of 2.
B)If there are 40 subjects in each condition and mean difference between the responses of the control group and the experimental group is 1 and both have standard deviations of 1.
C)If there are 40 subjects in each condition and mean difference between the responses of the control group and the experimental group is 2 and both have standard deviations of 1.
D)If there are 40 subjects in each condition and mean difference between the responses of the control group and the experimental group is 1 and both have standard deviations of 2.
E)If there are 40 subjects in each condition and mean difference between the responses of the control group and the experimental group is 2 and both have standard deviations of 2.

Question

Quizplus · Accepted Answer

The t-value increases with a larger mean difference and decreases with larger standard deviations and sample size. Option C has the highest mean difference (2) with the lowest standard deviations (1), which would yield the highest t-value.

If an Experimenter Conducts a T-Test to See Whether the Responses