Refining the marijuana purchase task: Using qualitative methods to inform measure development.

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Tytuł:: Refining the marijuana purchase task: Using qualitative methods to inform measure development.
Autorzy:: Aston ER; Center for Alcohol and Addiction Studies and Department of Behavioral and Social Sciences, Brown University School of Public Health.
Metrik J; Providence Veterans Affairs Medical Center.
Rosen RK; Department of Behavioral and Social Sciences, Brown University School of Public Health.
Swift R; Providence Veterans Affairs Medical Center.
MacKillop J; Peter Boris Centre for Addictions Research.
Źródło:: Experimental and clinical psychopharmacology [Exp Clin Psychopharmacol] 2021 Feb; Vol. 29 (1), pp. 23-35. Date of Electronic Publication: 2020 Feb 27.
Typ publikacji:: Journal Article
Język:: English
Imprint Name(s):: Original Publication: Washington, DC : American Psychological Association, c1993-
MeSH Terms:: Economics, Behavioral*/trends
Qualitative Research*
Commerce/*economics
Marijuana Smoking/*economics
Marijuana Smoking/*psychology
Adult ; Cannabis ; Female ; Hallucinogens/economics ; Humans ; Male ; Marijuana Smoking/trends ; Reinforcement, Psychology ; Young Adult
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Grant Information:: K01 DA039311 United States DA NIDA NIH HHS; K24 HD062645 United States HD NICHD NIH HHS; R01 AA024091 United States AA NIAAA NIH HHS; National Institute on Drug Abuse; National Institute on Alcohol Abuse and Alcoholism
Substance Nomenclature:: 0 (Hallucinogens)
Entry Date(s):: Date Created: 20200228 Date Completed: 20210426 Latest Revision: 20220202
Update Code:: 20240105
PubMed Central ID:: PMC7483201
DOI:: 10.1037/pha0000355
PMID:: 32105138
: Czasopismo naukowe

Behavioral economic demand for cannabis (i.e., relative reinforcing value) can be measured via marijuana purchase tasks (MPTs). However, commodity ambiguities pose challenges and design concerns exist regarding current MPTs. The aim of this 2-phase study was to modify and improve a MPT using qualitative methods. Phase I: Focus groups were conducted with regular (i.e., average use ≥ once/week) cannabis users ( n = 31; 6-7 per group M [ SD ] age = 26 [7]; 28% female). Focus groups followed a semistructured agenda, and executive summaries were made concerning key MPT themes. Feedback was used to refine the MPT. Phase II: Cognitive interviews using the refined MPT were conducted with regular cannabis users ( n = 20; M [ SD ] age = 28 [8]; 50% female). Phase I: Focus group analyses highlighted 4 critical areas for MPT improvement: (a) unit of purchase, (b) cannabis quality, (c) time duration specified for use episode, and (d) price. Participants suggested using grams as the unit of purchase, tailoring cannabis quality to the individual, and clarifying intended episode length. Phase II: Cognitive interviewing indicated additional areas for task refinement, resulting in a second iteration of the MPT based on the 2 phases. Qualitative research in both phases suggested a number of substantive modifications to the MPT format. MPT modifications are expected to improve comprehension, ecological validity, and general construct validity. Findings highlight the importance of careful instructional set development for drug purchase tasks for heterogeneous products that do not have standard units of consumption. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

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