3. In around two sentences, report the mean difference in Fear_pre score between the groups (noting which group is higher/lower), and the results of the statistical test (in APA style), including a stat block and effect size. ans: The mean Fear_pre score for the PTSD group (M = 7.1447, SD = 1.80151, N = 76) was higher than the phobia group (M = 6.2840, SD = 1.97633, N = 81). t = -2.846, df = 155 p = 0.005, cohen's d = -0.455, SE cohen's d = 0.164