. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: Addict Behav. 2013 Apr 16;38(9):2422–2427. doi: 10.1016/j.addbeh.2013.04.002

Table 3.

Association between Motivational Factors for Quitting Cannabis Use and Abstinence or Relapse Status at the Time of Study Interview in 385 Adult, Non-Treatment-Seeking Cannabis Users

	Mean Applicability Score^b
Motivational factor^a	Abstinent n = 46 (12%)	Relapsed n = 339 (88%)	t	p	Cohen’s d
Self-image/self-control	2.45	1.89	3.191	0.002	0.501
Health concern	1.42	0.92	2.990	0.003	0.470
Interpersonal relationship concern	1.30	0.89	2.691	0.007	0.423
Legal concerns	1.09	0.96	0.645	0.519	0.101
Social acceptability concerns	1.26	0.81	2.95	0.003	0.463
Self-efficacy	2.27	2.21	0.333	0.739	0.052

6 motivational factors generated by principal components analysis of 22 items related to reasons for quitting cannabis use

Mean of the applicability scores (0–4 Likert scale) for all items that loaded on the factor. Applicability score reflects participant’s judgment of the degree to which that item applied to the participant’s quit attempt.