b) Daniel 7.4.1 Ellen Davis Jones (A -15) studied the effects of reminiscence therapy for old women with depression. She studied 15 women 60years or older residing for 3 months or longer in an assisted living long term care facility. For this study, depression was measured by the Geriatric Depression Scale ( GDS). Higher scores indicate more severe depression symptoms. The participants received Reminiscence Therapy for long term care which uses family photographs, scrapbooks, and personal memorabilia to stimulate memory and conversation among group members. Pre-treatment and post-treatment depression scores are given in the following table. Can we conclude, based on these data, that subjects who participate in Reminiscence Therapy experience, on average, a decline in GDS depression scores? Let = 0.01. Pre-GDS: 12 10 16 2 12 18 11 16 16 10 14 21 9 19 20 Post-GDS:11 10 11 3 9 13 8 14 16 10 12 22 9 16 18