Alışkanlık ve Geçmiş Davranış, Kannabis Kullanım Sıklığının Tahminini Önemli Ölçüde Artırıyor

Özet (abstract)

Abstract This study evaluated the explanatory power of the theory of planned behavior (TPB) and examined past behavior and habit strength as non-conscious predictors of cannabis use frequency. It also explored whether the model’s explanatory power was consistent across gender and college status. Using non-probability targeted sampling, we recruited 606 Spanish-speaking young adults (aged 18–25, M = 21.04, SD = 2.15; 61.2% male) who reported cannabis use in the past month from public venues. Participants completed an initial survey assessing cannabis use frequency, TPB constructs, and habit strength. Three months later, 501 (82.6%) completed a follow-up assessment of cannabis use frequency and habit strength. The TPB model accounted for 39.2% of the variance in cannabis use intention and 56.2% of the variance in cannabis use frequency. The extended model, which included past behavior and habit strength (at both time points), accounted for 65.7% and 67.6%, respectively. Baseline habit strength was not significantly associated with intention. Past behavior and habit strength at follow-up showed the strongest associations with cannabis use frequency, while associations involving deliberative constructs were attenuated. The extended TPB model was invariant across gender and college status. While the TPB offers a solid framework for understanding cannabis use behavior, these findings highlight the need to consider both non-conscious and deliberative processes when designing interventions aimed at reducing cannabis use.

Yazarların özeti; kaynağından alınmıştır. International Journal of Mental Health and Addiction, 2026 · DOI ↗