Answer Happy

Randy wants to see whether Intervention A is more effective than Intervention B in improving self-esteem scores. Randy conducts an experiment to see if recipients of Intervention A improve more in self-esteem from pretest to posttest than recipients of Intervention B, using the .05 level of significance (alpha). Randy conducts two paired- sample t-Tests and finds a p value of .04 for Intervention A's improvement and a p value of .06 for Intervention B's improvement. Randy then conducts an independent-samples t-Test of the posttest scores and finds a p value of 55. Which of the following statements is an appropriate conclusion from Randy's findings? a. Intervention A is more effective than Intervention B in improving self-esteem scores. a b.Both interventions are effective in improving self-esteem scores, but Intervention A is more effective. c. Both interventions are equally effective in improving self-esteem scores. c d. We cannot conclude that either intervention is effective in improving self-esteem scores.