Suppose You Have Achieved Statistical Significance and You Are Examining

Suppose you have achieved statistical significance and you are examining the issue of practical significance with the single-subject study. What is the question you must answer?

A) Was there an improvement from the baseline to the treatment?
B) Were the treatment scores more positive than the baseline scores at a statistically significant level?
C) Is the mean of treatment scores at least two standard deviations better than the mean of the baseline scores?
D) Was the amount of measured gain for the client noteworthy from a clinical standpoint?