Catherine A Quinn1, Hollie Wilson2, Wendell Cockshaw2, Emma Barkus3, Leanne Hides4. 1. Centre for Youth Substance Abuse Research (CYSAR), Australia; Centre for Children's Health Research (CCHR), Australia; Institute of Health and Biomedical Innovation (IHBI), School of Psychology and Counselling, Faculty of Health, Queensland University of Technology (QUT), Brisbane, Australia. Electronic address: c6.quinn@qut.edu.au. 2. Institute of Health and Biomedical Innovation (IHBI), School of Psychology and Counselling, Faculty of Health, Queensland University of Technology (QUT), Brisbane, Australia. 3. School of Psychology, University of Wollongong, Wollongong, Australia. 4. Centre for Youth Substance Abuse Research (CYSAR), Australia; Centre for Children's Health Research (CCHR), Australia; Institute of Health and Biomedical Innovation (IHBI), School of Psychology and Counselling, Faculty of Health, Queensland University of Technology (QUT), Brisbane, Australia.
Abstract
OBJECTIVE: To develop and validate a short form of the Cannabis Experiences Questionnaire - Intoxication Effects (CEQ-I), a 42-item scale which measures the euphoric and paranoid-dysphoric effects of cannabis intoxication. METHOD: Exploratory and confirmatory factor analyses were conducted among 604 past-month cannabis users to develop the short form. The factor structure was replicated in a second sample of 146 past-month cannabis users. The concurrent validity of the scale was also examined. RESULTS: Consistent with previous research, two factors were identified (paranoid-dysphoric; euphoric), and were replicated with confirmatory factor analyses. The most parsimonious scale consisted of 13 items. Correlations of short-form subscales with corresponding original subscales were high. The paranoid-dysphoric subscale was also moderately positively correlated with measures of psychotic-like experiences (PLEs) and psychological distress. CONCLUSIONS: The revised and validated CEQ-I short form can be used to explore the euphoric and paranoid-dysphoric effects of cannabis intoxication in young cannabis users, and whether these experiences increase their risk of developing cannabis use and psychotic disorders. The CEQ-I short form has the potential to aid in the identification of young cannabis users at risk of the paranoid-dysphoric effects of cannabis intoxication and may assist in the development of early intervention strategies targeting cannabis users with PLEs.
OBJECTIVE: To develop and validate a short form of the Cannabis Experiences Questionnaire - Intoxication Effects (CEQ-I), a 42-item scale which measures the euphoric and paranoid-dysphoric effects of cannabis intoxication. METHOD: Exploratory and confirmatory factor analyses were conducted among 604 past-month cannabis users to develop the short form. The factor structure was replicated in a second sample of 146 past-month cannabis users. The concurrent validity of the scale was also examined. RESULTS: Consistent with previous research, two factors were identified (paranoid-dysphoric; euphoric), and were replicated with confirmatory factor analyses. The most parsimonious scale consisted of 13 items. Correlations of short-form subscales with corresponding original subscales were high. The paranoid-dysphoric subscale was also moderately positively correlated with measures of psychotic-like experiences (PLEs) and psychological distress. CONCLUSIONS: The revised and validated CEQ-I short form can be used to explore the euphoric and paranoid-dysphoric effects of cannabis intoxication in young cannabis users, and whether these experiences increase their risk of developing cannabis use and psychotic disorders. The CEQ-I short form has the potential to aid in the identification of young cannabis users at risk of the paranoid-dysphoric effects of cannabis intoxication and may assist in the development of early intervention strategies targeting cannabis users with PLEs.
Authors: Suzanne Archie; Lena Palaniyappan; Andrew T Olagunju; Natasha Johnson; Nicole Kozloff; Elham Sadeh; Andrea Bardell; Alexandra Baines; Kelly K Anderson; Oyedeji Ayonrinde; Manuela Ferrari Journal: JMIR Res Protoc Date: 2022-05-20