Schizotypal personality disorder (STPD) is characterized by difficulties in intimate relationships, social and interpersonal deficits, and perceptual distortions. Encompassing this personality disorder and other mental conditions, the Hierarchical taxonomy of psychopathology (HiTOP) is an evidence-based, dimensional model covering pathological traits in its lower range. This study aimed to develop a self-report scale for screening pathological traits of STPD from the perspective of the HiTOP. The sample consisted of 474 Brazilian adults aged 18–70 years who answered the developed scale, the IDCP-STPD, facets of the Personality Inventory for DSM-5 (PID-5), and factors of the Computerized Adaptive Assessment of Personality Disorder Static Form (CAT-PD-SF). The scale was composed of 73 items distributed in two factors. Internal structure reliability was higher than 0.80 for all scores of the scale. The factors showed associations with the expected external measures, and the groups based on the STPD external measures (healthy and pathological) showed big to huge differences. Although initial, our findings suggested the IDCP-STPD as a helpful measure to the clinical context to screen the STPD pathological traits. Moreover, the structure observed for the IDCP-STPD confirms the spectrum level of the HiTOP.

中文翻译：

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通过 HiTOP 模型测量分裂型人格障碍的病理特征

分裂型人格障碍 (STPD) 的特征是亲密关系困难、社交和人际关系缺陷以及知觉扭曲。包括这种人格障碍和其他精神状况，精神病理学分层分类法 (HiTOP) 是一个基于证据的维度模型，涵盖了其较低范围的病理特征。本研究旨在从HiTOP的角度开发一个用于筛查STPD病理特征的自我报告量表。样本由 474 名年龄在 18-70 岁的巴西成年人组成，他们回答了发达量表、IDCP-STPD、DSM-5 人格量表 (PID-5) 的各个方面以及人格障碍静态形式的计算机化自适应评估的因素(CAT-PD-SF)。该量表由分布在两个因素中的 73 个项目组成。该量表的所有分数的内部结构信度均高于0.80。这些因素显示出与预期外部措施的关联，基于 STPD 外部措施（健康和病理）的组显示出大到巨大的差异。虽然是初步的，但我们的研究结果表明 IDCP-STPD 可作为临床背景下筛选 STPD 病理特征的有用措施。此外，对 IDCP-STPD 观察到的结构证实了 HiTOP 的光谱水平。