Richards Dylan K, McCool Matison W, Pearson Matthew R
Center on Alcohol, Substance use, and Addictions (CASAA), University of New Mexico, Albuquerque, NM, USA.
Psychol Health. 2025 Apr 26:1-23. doi: 10.1080/08870446.2025.2489945.
We sought to evaluate an expanded and adapted version of the Treatment Self-Regulation Questionnaire (TSRQ) to assess the internalization continuum of motivation per self-determination theory (SDT) for responsible cannabis use and cannabis protective behavioural strategies (PBS).
We recruited 1,196 college students (Study 1) and 1,409 adults (Study 2) who reported past-month cannabis to complete online surveys; a random sample of 501 adults in Study 2 completed a follow-up survey one month later.
We found support for a 3-factor exploratory structural equation model of a 26-item TSRQ representing autonomous motivation, controlled motivation, and amotivation. Associations of the TSRQ with cannabis outcomes were consistent with SDT such that greater autonomous motivation was associated with more frequent cannabis PBS use (e.g. 'Limit use to weekends'). In contrast, greater controlled motivation and amotivation were associated with more negative cannabis-related consequences and more severe cannabis use. Differences emerged for instructions referencing responsible cannabis use versus cannabis PBS in Study 1.
The results support the use of the expanded and adapted TSRQ to assess motivations per SDT for cannabis harm reduction behaviours. These findings warrant replication and suggest that responsible cannabis use is conceptualized to be distinct from cannabis PBS.
我们试图评估治疗自我调节问卷（TSRQ）的一个扩展和改编版本，以根据自我决定理论（SDT）评估负责任使用大麻及大麻保护性行为策略（PBS）的动机内化连续体。
我们招募了1196名大学生（研究1）和1409名成年人（研究2），他们报告了过去一个月使用大麻的情况，并完成在线调查；研究2中随机抽取的501名成年人在一个月后完成了随访调查。
我们发现，一个由26个项目组成的TSRQ的三因素探索性结构方程模型得到支持，该模型代表自主动机、受控动机和无动机。TSRQ与大麻使用结果之间的关联与SDT一致，即更高的自主动机与更频繁地使用大麻PBS相关（例如“限制在周末使用”）。相比之下，更高的受控动机和无动机与更多负面的大麻相关后果以及更严重的大麻使用相关。在研究1中，关于负责任使用大麻与大麻PBS的指导说明出现了差异。
结果支持使用扩展和改编后的TSRQ来根据SDT评估减少大麻危害行为的动机。这些发现值得重复验证，并表明负责任使用大麻在概念上与大麻PBS不同。
