Table 2.

Results of Paired t-test and Wilcoxon Signed-Rank Test Examining the Change in Symptoms

Questionnaire	n	M	SD	df	t	p	Cohen’s d	Z	p
PHQ-A pre	12	10.35	7.17	10	0.68	0.51	0.20	− 0.59	0.56
PHQ-A post	12	8.82	8.49
CRIES-13 pre	17	42.59	12.13	16	5.43	< 0.001*	1.32	− 3.62	< 0.001*
CRIES-13 post	17	19.93	19.13

CRIES-13 Children’s Revised Impact of Events Scale, PHQ-A Patient Health Questionnaire for Adolescents, RCI Reliable Change Index

*p < 0.01