Table 3.

Standardized path parameter estimates of the multiple mediator model contrasting Text2Quit vs. control on mechanisms of change (n=409)

Type of Path
Path		β	SE	t
Direct effect: Text2Quit (vs. control) predicting 7-day abstinence
Text2Quit	→ (6-mo) 7-day Abstinence	0.20	0.05	4.17**
Mediational paths: Text2Quit (vs. Control) predicting mediators
Accomplished within the smoking cessation material
Text2Quit	→ (1-mo) “Gave me confidence”	0.46	0.04	11.66**
Outside resource encouraged by the smoking cessation material
Text2Quit	→ (1-mo) Medication	0.12	0.05	2.56*
Text2Quit	→ (1-mo) Quitline	0.04	0.05	0.87
Other outside resource used by participants
Text2Quit	→ (1-mo) Self-help materials	−0.05	0.05	−0.99
Text2Quit	→ (1-mo) Online forum	−0.03	0.05	−0.65
Mediational paths: Mediators predicting 7-day abstinence
Accomplished within the smoking cessation material
(1-mo) “Gave me confidence”	→ (6-mo) 7-day Abstinence	0.22	0.05	4.72**
Outside resource encouraged by the smoking cessation material
(1-mo) Medication	→ (6-mo) 7-day Abstinence	0.01	0.04	0.15
(1-mo) Quitline	→ (6-mo) 7-day Abstinence	−0.05	0.04	−1.10
Other outside resource used by participants
(1-mo) Self-help materials	→ (6-mo) 7-day Abstinence	−0.28	0.04	−6.62**
(1-mo) Online forum	→ (6-mo) 7-day Abstinence	0.28	0.04	6.50**

Note: using z-value cut-offs for the *, where 1.96 = 0.05 and 2.58 = 0.01; baseline covariates were included in the model (see Figure 1), but are not shown