Table 2.

Descriptive statistics for the different dimensions of psychological well-being in the three groups over time.

	Pre	Post	3 months	6 months	12 months
Self-acceptance
Experimental
M	25.24	31.41	27.69	27.69	27.31
SD	0.90	0.89	1.00	1.01	1.04
Placebo
M	26.72	27.87	27.72	26.64	24.66
SD	0.77	0.77	0.87	0.88	0.90
Control
M	26.33	26.39	26.56	25.92	25.89
SD	0.80	0.80	0.90	0.91	0.94
Environmental mastery
Experimental
M	26.27	30.83	28.83	29.52	27.93
SD	0.93	0.79	1.01	1.01	1.09
Placebo
M	27.56	26.36	25.49	26.00	24.02
SD	0.80	0.68	0.87	0.87	0.94
Control
M	27.03	26.05	25.31	26.47	25.33
SD	0.84	0.70	0.91	0.91	0.98
Personal growth
Experimental
M	24.21	27.10	27.86	26.45	25.93
SD	1.25	1.20	1.45	1.27	1.34
Placebo
M	24.05	22.26	23.67	22.28	20.15
SD	1.08	1.03	1.25	1.10	1.16
Control
M	22.97	22.44	21.86	20.0.6	21.55
SD	1.12	1.07	1.30	1.14	1.21
Purpose in life
Experimental
M	20.10	26.38	23.90	23.93	22.55
SD	1.15	1.08	1.25	1.20	1.24
Placebo
M	22.33	20.97	19.87	20.36	18.31
SD	0.99	0.93	1.08	1.04	1.07
Control
M	20.25	20.53	18.80	19.78	18.06
SD	1.03	0.97	1.12	1.08	1.11
Positive relationships with others
Experimental
M	22.96	24.93	25.17	24.90	25.24
SD	1.31	1.33	1.35	1.23	1.35
Placebo
M	26.05	23.72	23.95	23.10	22.95
SD	1.13	1.15	1.16	1.06	1.17
Control
M	22.50	22.11	21.22	21.33	20.58
SD	1.18	1.19	1.21	1.10	1.21
Autonomy
Experimental
M	30.93	31.76	34.00	32.45	32.45
SD	1.31	1.41	1.28	1.45	1.53
Placebo
M	33.15	33.56	34.87	31.92	32.92
SD	1.13	1.25	1.10	1.25	1.32
Control
M	33.94	35.72	34.58	33.19	34.86
SD	1.17	1.26	1.15	1.30	1.37