Latent factor structure of a behavioral economic marijuana demand curve

Psychopharmacology
Elizabeth R AstonJane Metrik

Abstract

Drug demand, or relative value, can be assessed via analysis of behavioral economic purchase task performance. Five demand indices are typically obtained from drug purchase tasks. The goal of this research was to determine whether metrics of marijuana reinforcement from a marijuana purchase task (MPT) exhibit a latent factor structure that efficiently characterizes marijuana demand. Participants were regular marijuana users (n = 99; 37.4% female, 71.5% marijuana use days [5 days/week], 15.2% cannabis dependent) who completed study assessments, including the MPT, during a baseline session. Principal component analysis was used to examine the latent structure underlying MPT indices. Concurrent validity was assessed via examination of relationships between latent factors and marijuana use, past quit attempts, and marijuana expectancies. A two-factor solution was confirmed as the best fitting structure, accounting for 88.5% of the overall variance. Factor 1 (65.8% variance) reflected "Persistence," indicating sensitivity to escalating marijuana price, which comprised four MPT indices (elasticity, O max, P max, and breakpoint). Factor 2 (22.7% variance) reflected "Amplitude," indicating the amount consumed at unrestricted price (int...Continue Reading

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Citations

Jan 10, 2020·Neurotherapeutics : the Journal of the American Society for Experimental NeuroTherapeutics·Elizabeth R Aston, Lidia Z Meshesha
Apr 9, 2020·Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco·Rachel N CassidySuzanne M Colby
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Feb 15, 2020·Journal of the Experimental Analysis of Behavior·Justin C StricklandB Levi Bolin
Nov 29, 2020·Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco·ReJoyce GreenLara A Ray
Apr 29, 2019·Drug and Alcohol Dependence·Justin C StricklandWilliam W Stoops
Aug 3, 2021·Drug and Alcohol Dependence·Erin FergusonJeff Boissoneault

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Software Mentioned

GraphPad Prism
SPSS

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