OBJECTIVE Although there is growing evidence that alcohol use at the daily level is associated with positive but not negative affect, results are mixed when examining marijuana use and simultaneous alcohol and marijuana (SAM) use (i.e., use with overlapping effects). In addition, less is known about these daily level associations among diverse samples of adolescents and young adults. The present study will address these gaps. METHOD Participants (N = 1,006; 57.3% female, 43.1% White, Non-Hispanic, ages 15-25; Mage = 20.0) were part of a study on substance use that consisted of a 3-week ecological momentary assessment (EMA) burst design (eight surveys per week, up to 2×/day) that was repeated quarterly over a 12-month period. RESULTS Within-person results indicated that on days with elevated positive affect, participants reported consuming more drinks, whereas positive affect was not significant for hours high from marijuana. In addition, on days with elevated negative affect, participants reported fewer hours high from marijuana. No association was found between negative affect and number of drinks. Finally, within-person results indicated that on alcohol or marijuana days with elevated positive affect, individuals were more likely to report SAM use. There was no association found between negative affect and SAM use. CONCLUSIONS Results have implications such that in-the-moment interventions for alcohol and SAM use may be more salient when individuals have higher positive affect than average, whereas such interventions may be more relevant for marijuana use when negative affect is lower compared to average levels. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

中文翻译：

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每日水平检查表明，青少年和年轻人的酒精和大麻使用与积极情绪相关，但没有消极情绪。

目的 尽管越来越多的证据表明，日常饮酒与积极影响相关，但与消极影响无关，但在检查大麻使用以及同时饮酒和大麻 (SAM) 使用（即具有重叠效应的使用）时，结果是混杂的。此外，人们对不同青少年和年轻人样本之间的日常水平关联知之甚少。本研究将解决这些差距。方法 参与者（N = 1,006；57.3% 女性，43.1% 白人，非西班牙裔，年龄 15-25；Mage = 20.0）参与了一项物质使用研究，该研究包括为期 3 周的生态瞬时评估 (EMA) 爆发设计（每周 8 次调查，最多 2 次/天），在 12 个月的时间内每季度重复一次。结果 个人内部结果表明，在积极情绪高涨的日子里，参与者报告说喝了更多的饮料，而在吸食大麻的几个小时内，积极情绪并不显着。此外，在负面情绪增加的日子里，参与者报告吸食大麻的时间会减少。没有发现负面情绪和饮酒次数之间存在关联。最后，个人内部结果表明，在酒精或大麻的积极影响较高的日子里，个人更有可能报告 SAM 使用情况。未发现负面情绪与 SAM 使用之间存在关联。结论 结果表明，当个体的积极情绪高于平均水平时，对酒精和 SAM 使用的即时干预可能更为显着，而当消极情绪低于平均水平时，此类干预措施可能与大麻使用更相关。（PsycInfo 数据库记录 (c) 2023 APA，保留所有权利）。