The use of patient-reported measures in assessing mental health symptoms is common in both the research and clinical fields. With regard to assessing posttraumatic stress symptoms, there are specific versions of measures designed for child and adolescent populations in accordance with the fourth and fifth editions of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV and DSM-5, respectively). Different clinical thresholds, numbers of items, and score ranges may present obstacles for clinicians and researchers attempting to compare self-report ratings across different versions of a measure. The current study aimed to produce a score conversion crosswalk between two child/adolescent self-report measures of posttraumatic stress disorder (PTSD): the UCLA PTSD Reaction Index for DSM-IV (RI-IV) and DSM-5 (RI-5). Using item response theory (IRT), we calibrated both measures separately to derive scaled scores. The discrimination parameters ranged from 0.57 to 2.08 (SE = 0.09–0.17) for RI-IV and from 0.73 to 2.11 for RI-5 (SE = 0.07–0.13). The scaled scores were connected with equipercentile linking. Total scores based on common items between the two measures were used as anchors to enhance the linking results. A total of 1,486 children and adolescents completed the measure: 571 respondents filled out the RI-IV and 915 respondents filled out the RI-5. The results allow linked scores to be compared to establish recommended clinical cutoffs and help elucidate the implications of changes in the diagnostic criteria for the measurement of self-reported PTSD symptoms in children and adolescents.

中文翻译：

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UCLA PTSD 反应指数的转换人行横道：将 DSM-IV 转换为 DSM-5

使用患者报告的措施来评估心理健康症状在研究和临床领域都很常见。关于评估创伤后应激症状，根据《精神疾病诊断和统计手册》第四版和第五版（DSM-IV和DSM-5），有针对儿童和青少年人群设计的特定版本的措施， 分别）。不同的临床阈值、项目数量和评分范围可能会给临床医生和研究人员尝试比较不同版本的衡量标准的自我报告评分带来障碍。目前的研究旨在产生两个儿童/青少年创伤后应激障碍 (PTSD) 自我报告测量之间的分数转换交叉路口：加州大学洛杉矶分校DSM-IV (RI-IV) 和DSM-5 (RI-5) PTSD 反应指数. 使用项目反应理论 (IRT)，我们分别校准了这两个度量以得出比例分数。RI-IV的鉴别参数范围为 0.57 到 2.08（SE = 0.09-0.17），RI-5的鉴别参数范围为 0.73 到 2.11（SE= 0.07–0.13）。标度分数与等百分位链接相关。基于两个度量之间共同项目的总分被用作锚点以增强链接结果。共有 1,486 名儿童和青少年完成了该措施：571 名受访者填写了 RI-IV，915 名受访者填写了 RI-5。结果允许比较相关的分数以建立推荐的临床临界值，并帮助阐明诊断标准变化对儿童和青少年自我报告的 PTSD 症状的测量的影响。