Table 2.

Fixed Effects from Mixed Effects Models Examining Long-term Treatment Outcomes

Predictors	Estimate	95% CI	SE	t(df)	Std Est	95% CI	p
Hope Model (1a)
Intercept	34.19	32.10, 36.27	1.06	32.27 (69.67)			<.001
Time	0.20	−0.14, 0.54	0.17	1.14 (65.66)	0.04	−0.03, 0.12	.26
Hope Model (1b)
Intercept	32.40	29.40, 35.39	1.52	21.28 (68.90)			<.001
Time	0.37	−0.12, 0.86	0.25	1.49 (62.33)	0.04	−0.03, 0.12	.14
Treatment	3.35	−0.74, 7.45	2.08	1.61 (69.47)	0.13	−0.07, 0.34	.11
Time × Treatment	−0.33	−1.01, 0.35	0.34	−0.96 (65.01)	−0.04	−0.11 – 0.04	.34
Well-being Model (2a)
Intercept	45.73	42.50, 48.96	1.64	27.84 (69.23)			<.001
Time	−0.19	−0.67, 0.29	0.24	−0.76 (59.67)	−0.03	−0.09, 0.04	.45
Well-being Model (2b)
Intercept	43.92	39.23, 48.61	2.39	18.41 (68.52)			<.001
Time	0.06	−0.63, 0.75	0.35	0.17 (56.67)	−0.03	−0.09, 0.04	.86
Treatment	3.41	−3.00, 9.83	3.26	1.05 (69.03)	0.07	−0.14, 0.29	.30
Time × Treatment	−0.48	1.43, 0.48	0.49	−0.98 (59.31)	−0.03	−0.10, 0.03	.33
Well-being Model (3)
Intercept	−12.02	−22.19, −1.84	5.16	−2.32 (66.36)			.02
Within-person Hope	0.88	0.73, 1.03	0.08	11.70 (246.88)	0.26	0.22, 0.30	<.001
Between-person Hope	0.75	0.49, 1.01	0.13	5.69 (64.46)	0.42	0.28, 0.57	<.001
PT Well-being	0.59	0.43, 0.74	0.08	7.50 (65.01)	0.58	0.43, 0.73	<.001
PT Anxiety	0.57	−0.09 – 1.24	0.34	1.70 (64.40)	0.12	−0.02, 0.26	.09
PT Depression	0.44	−0.10 – 0.99	0.28	1.60 (63.03)	0.11	−0.02, 0.24	.11

Note. PT = post-treatment, Std Est = standardized estimate. Bolded p-values indicate statistical significance at p < .05. Time is modeled as a continuous predictor. Between-Person Hope reflects each individual’s average hope across the long-term follow-up period (i.e., person-mean hope). Within-Person Hope represents fluctuations in an individual’s hope at a given timepoint relative to their own average (i.e., person-centered hope). Model 1a marginal R² = 0.00, conditional R² = 0.76; Model 1b marginal R² = .02, conditional R² = 0.76; For Model 2a marginal R² = 0.00, conditional R² = 0.79; Model 2b marginal R² = .01, conditional R² = 0.79; Model 3 marginal R² = 0.70, conditional R² = 0.85.