Table 2.

Cohen’s d effect size calculations between subsequent treatment phases

	Phase 1–2 (d)	Phase 2–3 (d)	Phase 3–4 (d)
OCD symptoms
OCD—child	0.58	0.48	0.11
OCD—parent	0.46	0.43	0.20
OCD—clinician	0.62	0.80	0.64
Family factors
FA	0.42	0.41	0.24
DT	0.55	0.49	0.15
Blame-child	0.19	0.20	0.20
Blame-parent	0.19	0.33	0.28
Conflict-child	0.39	0.14	0.03

d Cohen’s d, OCD obsessive compulsive disorder, FA family accommodation, DT distress tolerance