Table 4.

Results of the linear mixed model with patient-rated working alliance.

	Dependent Variable
Predictors	Estimates	SE	95% CI	Statistic	p-value
(Intercept)	14.96	0.88	13.25; 16.68	17.08	<0.001
Time × group × working alliance	0.61	0.14	0.33; 0.89	4.25	<0.001
Quadratic time × group × working alliance	−0.03	0.00	−0.04; −0.02	−5.34	<0.001

Notes: SE: Standard error. Random effects: residual (σ²) = 6.63; intercept (τ₀₀) = 20.70; slope (τ₁₁) = 0.08; intercept–slope covariance (ρ₀₁) = −0.17; intraclass correlation coefficient (ICC) = 0.76; N = 70; Observations 1118; Marginal R²/Conditional R² = 0.191/0.804; log likelihood = −2861.15.