Table 1.

Internal consistency testing of study variables (n = 533).

Scales	Items	Cronbach’s alpha
		T1	T2	T3
PANAS	20	0.808	0.876	0.875
Positive affect (PA)	10	0.851	0.903	0.903
Negative affect (NA)	10	0.887	0.905	0.899

T1, Time 1 (intake); T2, Time 2 (one-month follow-up); T3, Time 3 (2-month follow-up); PA and NA belongs to PANAS.