Psychometric properties of the PTSD Checklist for DSM-5: a pilot study

To date there is a lack of studies assessing the psychometric properties of the recently revised PTSD Checklist (PCL), the PTSD Checklist for DSM-5 (PCL-5). The aim of this pilot study was to examine the psychometric properties of the PCL-5 in parents of children with burns.
The participating parents (N=62, mean age=38) completed self-report questionnaires, 0.8–5.6 years after their child's burn. Measures were the PCL-5, the Impact of Event Scale-Revised (IES-R), the Montgomery–Åsberg Depression Rating Scale (MADRS), and the Perceived Stress Scale (PSS). Burn severity of the child and sociodemographic variables was obtained.
The parents’ average PCL-5 scores were low to moderate. The internal consistency of the PCL-5 was satisfactory, with Cronbach's alpha ranging from 0.56 to 0.77 and mean inter-item correlations ranging from 0.22 to 0.73 for the four PCL-5 subscales and the PCL-5 total. The PCL-5 subscales were moderately to highly correlated with the corresponding IES-R subscales as well as MADRS and PSS (p<0.05), whereas associations with sociodemographics and burn severity were low to moderate.
This study provides preliminary support for the use of PCL-5. The results indicate satisfactory psychometric properties of the PCL-5 as measured with internal consistency, test–retest reliability, and aspects of convergent validity.

迄今为止，针对最新修订版创伤后应激障碍检查表（PTSD Checklist, PCL）——即DSM-5版创伤后应激障碍检查表（PTSD Checklist for DSM-5, PCL-5）——的心理测量学属性开展的评估研究仍较为匮乏。本初步研究旨在针对烧伤患儿家长群体，检验PCL-5的心理测量学属性。

本研究共纳入62名参与家长（平均年龄38岁），这些家长在患儿烧伤后0.8~5.6年完成了自评问卷。测评工具包括PCL-5、事件影响量表修订版（Impact of Event Scale-Revised, IES-R）、蒙哥马利-阿斯伯格抑郁评定量表（Montgomery–Åsberg Depression Rating Scale, MADRS）以及知觉压力量表（Perceived Stress Scale, PSS）。同时收集了患儿烧伤严重程度及人口社会学变量数据。

家长的PCL-5平均得分处于低到中等水平。PCL-5的内部一致性表现良好，其四个分量表及总量表的克朗巴赫α系数（Cronbach's alpha）介于0.56至0.77之间，项目间平均相关系数则为0.22至0.73。PCL-5各分量表与IES-R对应分量表、MADRS及PSS均呈中高度相关（p<0.05），而其与人口社会学变量及烧伤严重程度的关联则处于低到中等水平。

本研究为PCL-5的应用提供了初步实证支持。研究结果显示，从内部一致性、重测信度及聚合效度维度来看，PCL-5具备良好的心理测量学属性。