Efficacy of path-oriented psychological self-help interventions to improve mental health of empty-nest older adults in the Community of China

Table 4 Results of Simple Effects of Interaction Effects on All Outcomes

Source of Variation	Mental Health Status		Positive coping style		Negative coping style		psychological self-help ability
Source of Variation	F	Cohen’s d	F	Cohen’s d	F	Cohen’s d	F	Cohen’s d
G WITHIN T0	1.33	−0.28	0.02	0.03	1.08	0.24	0.06	0.06
G WITHIN T1	7.59^**	0.67	7.24^**	0.64	8.85^**	−0.745	7.07^**	0.65
G WITHIN T2	13.24^**	0.94	10.42^**	0.78	16.13^**	−1.15	10.45^**	0.79
T WITHIN G1	18.12^**		10.14^**		20.92^**		7.22^**
G1 (T0 v. T1)		−0.97		−0.98		1.07		−0.66
G1 (T0 v. T2)		−1.26		−1.03		1.35		−0.82
G1 (T1 v. T2)		−0.24		−0.06		0.23		−0.15
T WITHIN G2	0.30		0.78		0.52		0.21
G2 (T0 v. T1)		−0.16		− 0.28		0.25		− 0.13
G2 (T0 v. T2)		−0.20		− 0.21		0.20		− 0.15
G2 (T1 v. T2)		−0.05		0.07		−0.05		− 0.02

Notes:G WITHIN T1: The simple effect of G at T1 level (the comparative results on levels of baseline in intervention and wait list control groups); G WITHIN T2: the comparative results of the 2 groups after one-month intervention; G WITHIN T3: the comparative results of the 2 groups after three-month intervention; T WITHIN G1: the comparative results of the intervention group at baseline, after one-month intervention and after three- month intervention; T WITHIN G2: the comparative results of the wait list control group at baseline, after one-month intervention and after three-month intervention; *P < 0.05; **P < 0.01

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