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Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

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Sleep-Related Cannabis Expectancy Questionnaire (SR-CEQ): Factor Analysis Replication, Internal Reliability, and

Patricia A Goodhines¹, Krutika Rathod¹, Aubriana A Schwarz²

¹Department of Psychology, University of Maine, Orono, ME, USA.

Journal of Psychoactive Drugs

|January 30, 2024

Summary

Positive expectancies about cannabis promoting sleep may increase self-medication. The Sleep-Related Cannabis Expectancies Questionnaire (SR-CEQ) shows positive expectancies are linked to insomnia and risky cannabis use in college students.

Keywords:

Cannabis college students expectancies sleep validation

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Area of Science:

Psychology
Addiction Research
Sleep Science

Background:

Cannabis use for sleep problems is common, driven by expectancies of sleep promotion.
The Sleep-Related Cannabis Expectancies Questionnaire (SR-CEQ) was developed to measure these expectancies.
Prior research has not fully evaluated the concurrent validity of the SR-CEQ.

Purpose of the Study:

To validate the Sleep-Related Cannabis Expectancies Questionnaire (SR-CEQ) in a college student sample.
To examine the two-factor structure, internal reliability, and incremental construct validity of the SR-CEQ.
To explore the relationship between sleep-related cannabis expectancies and insomnia and hazardous cannabis use.

Main Methods:

A cross-sectional online survey was administered to 287 college students.
Confirmatory factor analysis was used to assess the SR-CEQ's two-factor structure.
Internal consistency, correlations with other variables, and group differences were analyzed.

Main Results:

The two-factor model of the SR-CEQ demonstrated adequate fit and excellent internal consistency for positive and negative subscales.
Positive expectancies correlated with greater mood, sleep, and cannabis risk; negative expectancies correlated with lesser cannabis risk.
Higher positive expectancies were associated with insomnia and hazardous cannabis use.

Conclusions:

The SR-CEQ is a psychometrically sound instrument for measuring sleep-related cannabis expectancies.
Positive expectancies regarding cannabis's sleep-promoting effects appear to be a significant risk factor.
These findings suggest potential targets for interventions aimed at reducing problematic cannabis use for sleep.