The aim of the current study is to examine the psychometric properties of the German Version of the Youth Psychopathic traits Inventory-Short Version (YPI-S). A sample of 856 adolescents (age: 15–19) from the German-speaking part of Switzerland was included. All participants completed the 50-item YPI, of which we derived the 18 items of the YPI-S. Furthermore, participants completed the Massachusetts Youth Screening Instrument-Version-2 (MAYSI-2), as well a self-report delinquency questionnaire. We were able to replicate a three-factor structure and found moderate to good internal consistency for the total score as well as for the three dimensions of the YPI-S. Measurement invariance across gender was established. Furthermore, we found positive small to medium correlations with both internalizing and externalizing mental health problems, substance abuse problems, and offending behavior. Our results suggest that the German version of the YPI-S is a reliable and valid screening instrument for psychopathic traits in both boys and girls from the general population in the German-speaking part of Switzerland.

中文翻译：

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德文版青年心理变态特征量表的心理测量特性——简短版

本研究的目的是检查德语版青年精神病特征量表-短版 (YPI-S) 的心理测量特性。包括来自瑞士德语区的 856 名青少年（年龄：15-19 岁）样本。所有参与者都完成了 50 个项目的 YPI，我们从中导出了 YPI-S 的 18 个项目。此外，参与者还完成了马萨诸塞州青年筛查工具第 2 版 (MAYSI-2) 以及一份自我报告的犯罪调查问卷。我们能够复制三因素结构，并发现总分以及 YPI-S 的三个维度具有中等到良好的内部一致性。建立了跨性别的测量不变性。此外，我们发现与内化和外化心理健康问题的中小正相关关系，药物滥用问题和违规行为。我们的结果表明，德语版的 YPI-S 是一种可靠且有效的筛查工具，用于筛查瑞士德语区普通人群中男孩和女孩的精神病特征。