. Author manuscript; available in PMC: 2022 Feb 1.

Published in final edited form as: J Consult Clin Psychol. 2021 Feb;89(2):110–125. doi: 10.1037/ccp0000621

Table 4.

Estimated Marginal Means of Post-Treatment Scores from HGLM/HLM Models and Effect Size (Cohen’s d) Estimates for CBT Versus ESCT on POPE-JEGA Scores and YTP Scores

	Post-treatment Estimated Marginal Means (SEs)
Scale	CBT	ESCT	Cohen’s d (95% CI)
POPE-JEGA Scores	18.18 (1.53)	13.15 (1.54)	.50 (.06, .93)
YTP Scores	10.33 (.72)	15.62 (.71)	.87 (.45, 1.27)

Note. HGLM/HLM=hierarchical (generalized) linear model. POPE-JEGA=Playground Observation of Peer Engagement Joint Engagement/Games with Rules scale. YTP=Youth Top Problems scale. CBT=cognitive behavioral therapy. ESCT=enhanced standard community treatment. Effect size estimates were calculated using formulae provided by Feingold (2013).