Table 2.

Determining and comparing the mean scores of life satisfaction of the elderly in experimental and control groups at pretest, posttest, and follow-up stages

Stage	Mean (SD)		Independent t-test (t, P)
	Experimental group	Control group
Before intervention	17.03 (6.5)	17.30 (6.2)	0.16, 0.88
Immediately after intervention	30.7 (5.2)	17.8 (6.2)	8.94, <0.001
1 month after intervention	27.03 (5.1)	17.7 (6.1)	6.68, <0.001
Repeated-measures analysis of variance (F, P)	375.97, <0.001	1.75, 0.55

SD=Standard deviation