Data_Sheet_1_Psychometric Properties of the Independent 36-Item PID5BF+M for ICD-11 in the Czech-Speaking Community Sample.docx

Background: Empirical soundness and international robustness of the PID5BF+M, a shortened version of the PID-5 developed for simultaneous evaluation of maladaptive personality traits in the DSM-5 AMPD and ICD-11 models for personality disorders, was recently confirmed in 16 samples from different countries. Because the modified PID5BF+ scale (36 items) was extracted from the complete 220-item PID-5, an independent evaluation of psychometric properties of a stand-alone PID5BF+M is still missing.
Objectives: The present study evaluated the validity and reliability of the 36-item PID5BF+M in comparison with the extracted version from the original PID-5. It also assessed associations between the Borderline Pattern qualifier and trait domain qualifiers.
Methods: Two non-clinical samples meeting the inclusion criteria were employed in the study. Sample 1 (n = 614) completed the 220-item PID-5; Sample 2 (n = 1,040) completed the independent 36-item PID5BF+M. Participants were from all 14 regions of the Czech Republic. The Borderline Pattern qualifier was evaluated using a shortened IPDEQ screener.
Results: The proposed latent structure of the independent PID5BF+M was confirmed, with an exception of the Disinhibition domain. The results confirmed good internal consistency and test-retest reliability of the measure, as well as some support for the measurement invariance of the independent PID5BF+M in comparison with the extracted version from the original PID-5. Significant associations between the Negative affectivity, Disinhibition, and Psychoticism qualifiers and the IPDEQ items for the emotionally unstable personality disorder of both impulsive and borderline types confirmed good predictive validity of the PID5BF+M in pursuing borderline psychopathology within the ICD-11 model.
Conclusions: The independent PID5BF+M was found to be a valid and reliable tool for evaluation of the ICD-11 trait model. However, the Disinhibition domain deserves further investigation in clinical samples as well as in international community samples.

背景：针对《精神障碍诊断与统计手册第五版》（DSM-5）人格障碍替代模型（AMPD）与国际疾病分类第11版（ICD-11）中适应不良人格特质的同步评估需求开发的PID5BF+M（PID5BF+M），其经验效度与跨国家稳健性近期已在16个不同国家的样本中得到验证。由于经过修订的PID5BF+量表（含36个条目）源自完整版220条目的PID-5（PID-5），目前仍缺乏对独立版PID5BF+M的心理测量学特性的独立评估。
研究目的：本研究旨在对比从原始PID-5中提取的版本，评估36条目独立版PID5BF+M的效度与信度，并探讨边缘型模式限定符与各特质领域限定符之间的关联。
研究方法：本研究纳入两个符合入组标准的非临床样本。样本1（样本量n=614）完成了220条目的原始PID-5测评；样本2（样本量n=1040）完成了独立版36条目PID5BF+M测评。所有参与者均来自捷克共和国全部14个行政区。边缘型模式限定符采用简化版国际人格障碍检查表（IPDEQ）筛查工具进行评估。
研究结果：独立版PID5BF+M的潜在因子结构得到验证，仅去抑制性（Disinhibition）领域除外。结果证实该量表具备良好的内部一致性与重测信度；同时，相较于从原始PID-5中提取的版本，独立版PID5BF+M的测量恒同性也得到了一定支持。负性情感性、去抑制性与精神病质特质限定符，以及针对冲动型与边缘型情绪不稳定型人格障碍的IPDEQ条目之间存在显著关联，这证实了PID5BF+M在ICD-11模型中针对边缘型精神病理特征的预测效度良好。
研究结论：独立版PID5BF+M可作为评估ICD-11特质模型的有效且可靠的工具。然而，去抑制性领域仍需在临床样本与跨国家社区样本中开展进一步研究。