Both non‐suicidal self‐injury (NSSI) and risky drinking are positively associated with alexithymia, a personality trait characterized by difficulties appraising feelings and an externally orientated thinking style. Although researchers have studied the associations between alexithymia and both NSSI and risky drinking, the underlying factors of both associations are rarely compared. Using path analysis, we compared the mediating effects of behaviour‐specific outcome expectancies and self‐efficacy beliefs on the associations between alexithymia and both NSSI and risky drinking. A sample of 627 university students (76.10% female, Mage = 20.75, SD = 1.88) completed a battery of questionnaires. Alexithymia exhibited indirect effects on NSSI via affect regulation expectancies, pain expectancies, communication expectancies, and low self‐efficacy to resist NSSI. Alexithymia exhibited indirect effects on risky drinking via expectations of increased confidence and negative consequences. However, the indirect effects differed depending on the valance of the emotion the individual had difficulties appraising. Our findings indicate that the underlying factors in the associations between alexithymia and both NSSI and risky drinking could differ. Where individuals who have difficulties appraising negative emotions may engage in NSSI to help regulate negative feelings, they may consume alcohol to gain more confidence in expressing their feelings. Clinical implications are discussed.

中文翻译：

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述情障碍与非自杀性自伤和冒险饮酒之间关联的比较：明确结果预期和拒绝自我效能感的作用

非自杀性自伤 (NSSI) 和冒险饮酒都与述情障碍呈正相关，述情障碍是一种以难以评估感觉和外向思维方式为特征的人格特征。尽管研究人员研究了述情障碍与 NSSI 和危险饮酒之间的关联，但很少比较这两种关联的潜在因素。使用路径分析，我们比较了行为特定结果预期和自我效能信念对述情障碍与 NSSI 和危险饮酒之间关联的中介作用。627名大学生样本（76.10%女性，法师=20.75，SD= 1.88) 完成了一系列问卷调查。述情障碍通过影响调节预期、疼痛预期、沟通预期和抵抗 NSSI 的低自我效能对 NSSI 表现出间接影响。述情障碍通过预期增加的信心和负面后果对危险饮酒产生间接影响。然而，间接影响因个体难以评估的情绪的效价而异。我们的研究结果表明，述情障碍与 NSSI 和危险饮酒之间关联的潜在因素可能不同。在评估负面情绪有困难的个人可能会参与 NSSI 以帮助调节负面情绪时，他们可能会通过饮酒来获得更多的信心来表达自己的感受。讨论了临床意义。