Question: The following data are from a repeated-measures study examining the effect of a treatment by measuring a group of n = 4 participants before and

The following data are from a repeated-measures study examining the effect of a treatment by measuring a group of n = 4 participants before and after they receive the treatment.
a. Calculate the difference scores and MD.
b. Compute SS, sample variance, and estimated standard error.
c. Is there a significant treatment effect? Use Î± = .05, two tails.

Before After Treatment Participant Treatment A 10 B 13 12 D

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