Verbal behavior related to drug reinforcement in polysubstance cannabis users Comparison across drugs.
Verbal reports of drug effects are often used in behavioral pharmacology. Two reports related to reinforcement are drug use (Harford, 1978 Liu et al., 2018) frequency and drug preference. Anecdotally, some individuals may specify a favoritepreferred drug (e.g., psilocybin) despite using another drug more frequently (e.g., tobacco). Research comparing these two measures has led to contradictory findings and included ratings from participants who may not have experience with the rated drugs. No comparisons have been made between use frequency and preference across multiple drugs in polysubstance users. To compare use frequency and preference for drug classes, and examine relations across drug classes, individuals reporting polysubstance use (