Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study

Abstract Background Public education efforts to address and reduce potential harms from cannabis use in Arab countries are either slow or inexistent, and do not follow the steadily increasing trends of cannabis use in Arab youth. Several decades of research on substance use, it can be suggested that...

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Main Authors: Feten Fekih-Romdhane, Amthal Alhuwailah, Hanaa Ahmed Mohamed Shuwiekh, Manel Stambouli, Abir Hakiri, Majda Cheour, Alexandre Andrade Loch, Souheil Hallit
Format: Article
Language:English
Published: BMC 2024-04-01
Series:BMC Psychiatry
Subjects:
Online Access:https://doi.org/10.1186/s12888-024-05727-x
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author Feten Fekih-Romdhane
Amthal Alhuwailah
Hanaa Ahmed Mohamed Shuwiekh
Manel Stambouli
Abir Hakiri
Majda Cheour
Alexandre Andrade Loch
Souheil Hallit
author_facet Feten Fekih-Romdhane
Amthal Alhuwailah
Hanaa Ahmed Mohamed Shuwiekh
Manel Stambouli
Abir Hakiri
Majda Cheour
Alexandre Andrade Loch
Souheil Hallit
author_sort Feten Fekih-Romdhane
collection DOAJ
description Abstract Background Public education efforts to address and reduce potential harms from cannabis use in Arab countries are either slow or inexistent, and do not follow the steadily increasing trends of cannabis use in Arab youth. Several decades of research on substance use, it can be suggested that being aware of, and knowing about, psychosis risk related to cannabis can at least limit the consumption of the substance. Motivated by a lack of measures specifically designed to measure literacy about cannabis-related psychosis risk in younger populations, and based on an extensive literature review, we aimed to create and validate a new self-report scale to assess the construct, the Cannabis-related Psychosis Risk Literacy Scale (CPRL), in the Arabic language. Method A cross-sectional study was carried-out during the period from September 2022 to June 2023, enrolling 1855 university students (mean age of 23.26 ± 4.96, 75.6% females) from three Arab countries (Egypt, Kuwait and Tunisia). Results Starting from an initial pool of 20 items, both Exploratory Factor Analysis and Confirmatory Factor Analysis suggested that the remaining 8 items loaded into a single factor. The scale demonstrated good internal consistency, with both McDonald omega and Cronbach’s alpha values exceeding 0.7 (omega = 0.85 / alpha = 0.85). The CPRL showed measurement invariance across gender and country at the configural, metric, and scalar levels. Concurrent validity of the CPRL was established by correlations with less favourable attitudes towards cannabis (r = −.14; p <.001). In addition, higher literacy levels were found in students who never used cannabis compared to lifetime users (4.18 ± 1.55 vs. 3.44 ± 1.20, t(1853) = 8.152, p <.001). Conclusion The newly developed CPRL scale offers a valid and reliable instrument for assessing and better understanding literacy about cannabis-related psychosis risk among Arabic-speaking young adults. We believe that this new scale is suitable as a screening tool of literacy, as an instrument for measuring the effect of public education interventions aimed at promoting cannabis-related psychosis risk literacy among young people, and as a research tool to facilitate future studies on the topic with a wider application.
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spelling doaj.art-a1751c29d5d94973a12bd28d450bd5c82024-04-21T11:26:25ZengBMCBMC Psychiatry1471-244X2024-04-0124111210.1186/s12888-024-05727-xDevelopment and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric studyFeten Fekih-Romdhane0Amthal Alhuwailah1Hanaa Ahmed Mohamed Shuwiekh2Manel Stambouli3Abir Hakiri4Majda Cheour5Alexandre Andrade Loch6Souheil Hallit7Faculty of Medicine of Tunis, Tunis Al Manar UniversityDepartment of Psychology, Kuwait UniversityDepartment of Psychology, Fayoum UniversityFaculty of Medicine of Tunis, Tunis Al Manar UniversityFaculty of Medicine of Tunis, Tunis Al Manar UniversityFaculty of Medicine of Tunis, Tunis Al Manar UniversityLaboratorio de Neurociencias (LIM 27), Instituto de Psiquiatria, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao PauloPsychology Department, College of Humanities, Effat UniversityAbstract Background Public education efforts to address and reduce potential harms from cannabis use in Arab countries are either slow or inexistent, and do not follow the steadily increasing trends of cannabis use in Arab youth. Several decades of research on substance use, it can be suggested that being aware of, and knowing about, psychosis risk related to cannabis can at least limit the consumption of the substance. Motivated by a lack of measures specifically designed to measure literacy about cannabis-related psychosis risk in younger populations, and based on an extensive literature review, we aimed to create and validate a new self-report scale to assess the construct, the Cannabis-related Psychosis Risk Literacy Scale (CPRL), in the Arabic language. Method A cross-sectional study was carried-out during the period from September 2022 to June 2023, enrolling 1855 university students (mean age of 23.26 ± 4.96, 75.6% females) from three Arab countries (Egypt, Kuwait and Tunisia). Results Starting from an initial pool of 20 items, both Exploratory Factor Analysis and Confirmatory Factor Analysis suggested that the remaining 8 items loaded into a single factor. The scale demonstrated good internal consistency, with both McDonald omega and Cronbach’s alpha values exceeding 0.7 (omega = 0.85 / alpha = 0.85). The CPRL showed measurement invariance across gender and country at the configural, metric, and scalar levels. Concurrent validity of the CPRL was established by correlations with less favourable attitudes towards cannabis (r = −.14; p <.001). In addition, higher literacy levels were found in students who never used cannabis compared to lifetime users (4.18 ± 1.55 vs. 3.44 ± 1.20, t(1853) = 8.152, p <.001). Conclusion The newly developed CPRL scale offers a valid and reliable instrument for assessing and better understanding literacy about cannabis-related psychosis risk among Arabic-speaking young adults. We believe that this new scale is suitable as a screening tool of literacy, as an instrument for measuring the effect of public education interventions aimed at promoting cannabis-related psychosis risk literacy among young people, and as a research tool to facilitate future studies on the topic with a wider application.https://doi.org/10.1186/s12888-024-05727-xCannabis-related psychosis riskLiteracyPsychosisCannabisScale developmentPsychometric evaluation
spellingShingle Feten Fekih-Romdhane
Amthal Alhuwailah
Hanaa Ahmed Mohamed Shuwiekh
Manel Stambouli
Abir Hakiri
Majda Cheour
Alexandre Andrade Loch
Souheil Hallit
Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study
BMC Psychiatry
Cannabis-related psychosis risk
Literacy
Psychosis
Cannabis
Scale development
Psychometric evaluation
title Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study
title_full Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study
title_fullStr Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study
title_full_unstemmed Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study
title_short Development and initial validation of the cannabis-related psychosis risk literacy scale (CPRL): a multinational psychometric study
title_sort development and initial validation of the cannabis related psychosis risk literacy scale cprl a multinational psychometric study
topic Cannabis-related psychosis risk
Literacy
Psychosis
Cannabis
Scale development
Psychometric evaluation
url https://doi.org/10.1186/s12888-024-05727-x
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