title: The relationship between general causality orientation and treatment outcome among marijuana-dependent adults.
abstract: General causality orientations are motivational styles that are indicative of a person's belief about personal change and their motivation to change. The purpose of the current study was to investigate whether causality orientations were associated with marijuana treatment outcomes in a sample of marijuana-dependent individuals. A total of 74 participants (66% male) were recruited from the Seattle, Washington area and randomly assigned to receive a combination of motivational enhancement and cognitive behavioral therapy or the combination treatment plus additional "check-up" sessions. Follow-up assessments evaluated frequency of use, use-related problems, and marijuana use disorder symptoms through 9months. Causality orientations were relatively stable over time. Posttreatment Autonomy orientations were associated with lower frequency of use and Controlled orientations were associated with a reduction in use, problems, and marijuana use disorder symptoms. Autonomy and Controlled orientations were associated with readiness to change. Results suggest that both autonomous and controlled orientations have implications for response to treatment; perhaps for different reasons. Causality orientations may be a promising avenue of research to predict treatment response and outcome.
authors.affiliation: Department of Psychology, Williams Hall (0436), Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States. Electronic address: claireblevins0@gmail.com.
authors.forename: Claire E
authors.initials: CE
authors.lastname: Blevins
authors.affiliation: Department of Psychology, Williams Hall (0436), Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States.
authors.forename: Kelsey E
authors.initials: KE
authors.lastname: Banes
authors.affiliation: Innovative Programs Research Group, School of Social Work, University of Washington, Box 354690; 909 NE 43rd Street, Suite 304, Seattle, WA 98105, United States.
authors.forename: Denise D
authors.initials: DD
authors.lastname: Walker
authors.affiliation: Department of Psychology, Williams Hall (0436), Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States.
authors.forename: Robert S
authors.initials: RS
authors.lastname: Stephens
authors.affiliation: Innovative Programs Research Group, School of Social Work, University of Washington, Box 354690; 909 NE 43rd Street, Suite 304, Seattle, WA 98105, United States.
authors.forename: Roger A
authors.initials: RA
authors.lastname: Roffman
mesh_terms: D000328:Adult; D015928:Cognitive Behavioral Therapy / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D002189:Marijuana Abuse / Q000523:psychology* / Q000628:therapy*; D009042:Motivation; D062405:Motivational Interviewing / Q000379:methods*; D016896:Treatment Outcome; D014861:Washington
keywords: General causality orientation; Marijuana treatment; Motivation