. Author manuscript; available in PMC: 2018 Feb 1.

Published in final edited form as: Psychol Serv. 2017 Feb;14(1):57–65. doi: 10.1037/ser0000131

Table 3.

Changes in Outcome Measures From Pretest to Posttest in Multilevel Mixed-Effects Models

Variable	REML Estimate (SD)	Test Statistic	p	Attrition at Posttest (%)
TF-CBT competence	0.61 (0.98)	t_192.055 = 3.10	.002	57.32
Traumatic stress symptoms
Caregiver report	12.54 (17.54)	t_734.986 = 25.39	.000	38.02
Youth report	15.44 (17.53)	t_738.579 = 31.57	.000	39.86
Depression symptoms	13.08 (16.13)	t_668.685 = 27.02	.000	37.91

Note.

Statistically significant at p < .05 level.

REML = restricted maximum likelihood; TF-CBT = Trauma-Focused Cognitive Behavioral Therapy.