D Question 80 3 pts There are many programs that seek to change behavior. One way to assess the effect of a program is to give a pretest, administer the program, and give a posttest. To really prove the lasting value of the program, however, a researcher must gather follow-up data some months later to see if the improvement seen at posttest has continued. In the scores below, larger numbers represent improved performance. Analyze the data, compile it into a summary table, and make three HSD Write an interpretation that describes the effect of the program. Pretest Posttest One-year follow-up Subject 1 10 28 21 Subject 2 13 27 24 Subject 3 17 36 26 Subject 4 18 31 20