Table 3.

Time-varying predictors of Y-BOCS Reduction from Mid- to Post-Treatment

	Difference in magnitude of change in Y-BOCS total by covariate (> vs. ≤ median)
Time-Varying Predictor (Median Split)	β Estimate (Std. Error)1	t-Value	p-value
Change in Obsessive Beliefs Questionnaire (OBQ)
Total (> 18 vs. ≤ 18)	−1.5 (1.04)	−1.42	0.17
ICT Subtotal (> 5 vs. ≤ 5)	0.07 (1.13)	0.06	0.95
PC Subtotal (> 6 vs. ≤ 6)	−2.1 (0.98)	−2.13	0.048*
RT Subtotal (> 3 vs. ≤ 3)	−1.2 (0.90)	−1.36	0.19
Change in Young Schema Questionnaire (YSQ)
Total (>7 vs. ≤ 7)	−1.5 (0.94)	−1.54	0.14
DI Mean (>0 vs. ≤ 0)	−2.1 (0.93)	−2.23	0.037*
DS Mean (>0 vs. ≤ 0)	0.3 (0.93)	0.27	0.79
EI Mean (>0 vs. ≤ 0)	0.4 (0.93)	0.39	0.70
FA Mean (>0 vs. ≤ 0)	−1.2 (1.06)	−1.14	0.27
IS Mean (>0 vs. ≤ 0)	0.3 (0.88)	0.33	0.75
SI Mean (>0 vs. ≤ 0)	−1.1 (0.88)	−1.24	0.23
US Mean (>0.4 vs. ≤ 0.4)	0.6 (0.99)	0.63	0.54
VH Mean (>0 vs. ≤ 0)	−1.0 (0.86)	−1.17	0.26

Std. = Standard; Y-BOCS = Yale-Brown Obsessive Compulsive Scale;

ICT = Importance/Control of Thoughts; PC = Perfectionism/Certainty;

RT = Responsibility/Threat Estimation; DI = Dependence/Incompetence;

DS = Defectiveness/Shame; EI = Emotional Inhibition; FA = Failure to Achieve;

IS = Insufficient Self-Control/Self-Discipline; SI = Social Isolation;

US = Unrelenting Standards; VH = Vulnerability to Harm & Illness

¹Corresponds to the change in the lagged time-varying covariate

^*Significant at two-sided alpha=0.05 level.