Evaluating cannabis exposure in survey items: Insights, strategies, and remaining challenges identified from cognitive interviewing

Abstract Recall difficulty on survey items varied with participant’s use frequency. Difficulties emerged in reporting quantity of cannabis used over the past 7 days. Few issues were found with comprehension of items key to reporting THC exposure. Responses revealed several cannabis products previously unaddressed in the survey. Survey items were modified to address points of ambiguity identified in interviews. Article type: Research Article Keywords: Cannabis, Qualitative, Cognitive interviewing, Measurement assessment, Survey development, Marijuana, THC Authors: Claire A. Walsh, Cara A.