Which of the studies below would be analyzed using a t-test for dependent means

Question

a. The study of the effectiveness of a new medication given to the same subjects at two points in time
b. A study comparing men and women on a test of motor function
c. A study comparing the mean of a sample of students on a test of motor function to a known population mean and variance
d. A study examining the ideal dosage for a new medication

Answer 1

Here's a hint to help you answer this question:

In a t-test for dependent means, each subject participates in two research conditions (like a 'before' condition and an 'after' condition).