Observational design, limited study duration of three months use, variable dosing, self reporting bias, lack of feedback from family/friends about subject’s cannabis use limit conclusion that they are no more likely to lack motivation than non-users.

Medical Mythbusting Commentary for September 2, 2022

Source:
Cannabis users no more likely to lack motivation than non-users: Study breaks ‘stoner’ stereotype

Reference:
Anhedonia, apathy, pleasure, and effort-based decision-making in adult and adolescent cannabis users and controls

Bitnami