Table 2.

Means and Standard Deviations for TTM Construct Change Variables between Time Points

Model Variable Scales and Subscales		Baseline to 6 Months (n=689)		6 to 12 Months (n=516)		12 to 18 Months (n=454)		18 to 24 Months (n=427)
Model Variable Scales and Subscales		Mean	SD	Mean	SD	Mean	SD	Mean	SD
Stages of Change		0.10	1.27	0.03	1.29	0.02	1.17	0.08	1.13
Barrier Self-Efficacy^a		−0.12	5.13	0.12	4.61	0.49	4.64	−0.12	4.78
Temptations^b
	Affect	−2.64	34.77	0.70	32.33	−6.15	27.90	−1.37	25.06
	Competing Demands	0.46	37.16	5.34	34.82	−3.40	30.16	−1.07	28.97
Decisional Balance^a
	Pros	−0.55	4.16	−0.35	3.97	−0.23	3.96	0.60	3.86
	Cons	0.00	3.51	0.04	3.17	−0.65	3.22	0.09	3.28
Processes of Change^a
	SRF	−1.25	5.76	−0.16	4.92	−0.30	4.89	0.68	5.24
	DE	−0.50	4.48	−0.31	3.89	−0.16	3.50	0.26	3.40
	CC	−0.31	3.03	−0.04	2.66	−0.05	2.78	0.28	2.65
	HR	−0.47	3.21	−0.05	2.92	−0.18	2.58	0.35	2.75
	CR	−0.65	2.72	−0.10	2.25	0.05	2.17	0.12	2.39

CC = Counter Conditioning, CD = Competing Demands, CR = Consciousness Raising, DE= Dramatic relief/Environmental reevaluation, HR = Helping Relationships, SRF = Self-revaluation/Reinforcement management/Self-liberation

A scale of 1-5 was used.

A scale of 0-100 was used.