The parent-reported Strengths and Difficulties Questionnaire (SDQ-P) is commonly used to assess for mental health problems, but its psychometric properties have not been studied in the paediatric Acquired Brain Injury (ABI) population. This study investigated the properties of the SDQ-P and its subscales in this population using Rasch analysis. One hundred and forty-three SDQ-Ps and 123 Impact Supplements were analyzed. Sixty-nine percent of SDQ-Ps were completed by female carers, 59% of young people were male, and 58% had Traumatic Brain Injury (TBI). In this population the SDQ-P Total Difficulties Scale and the Conduct Problems subscale showed questionable construct validity. The individual subscales and Impact Supplement did not meet the criteria for reliability. Two items had disordered thresholds. The individual subscales showed mistargeting and 13–24% person misfit. Two items were significantly underdiscriminating. There was differential item functioning with age and time post-injury, and local dependence between subscale items. The Total Difficulties scale was multidimensional. The most easily endorsed items were in keeping with common symptoms of brain injury. These findings suggest the SDQ-P in its current form may not be a reliable and valid assessment measure for mental health difficulties in the paediatric ABI population and requires further investigation.

家长报告的优势与困难问卷（SDQ-P）通常用于评估心理健康问题，但尚未在儿童后天性脑损伤（ABI）人群中研究其心理测量特性。这项研究使用Rasch分析调查了SDQ-P及其子量表在该人群中的特征。对143个SDQ-P和123个影响补品进行了分析。69％的SDQ-P由女性护理人员完成，59％的年轻人是男性，58％的人患有颅脑外伤（TBI）。在该人群中，SDQ-P总困难量表和行为问题子量表显示出可疑的结构效度。各个分量表和影响补编不符合可靠性标准。有两个项目的门槛混乱。单个分量表显示了目标不正确和13-24％的人不适合。有两项明显被低估。损伤后的年龄和时间存在不同的项目功能，并且子量表之间存在局部依赖性。总困难量表是多维的。最容易赞同的项目与脑损伤的常见症状保持一致。这些发现表明，目前形式的SDQ-P可能不是对儿童ABI人群精神健康困难的可靠有效评估方法，需要进一步调查。最容易赞同的项目与脑损伤的常见症状保持一致。这些发现表明，目前形式的SDQ-P可能不是对儿童ABI人群精神健康困难的可靠有效评估方法，需要进一步调查。最容易赞同的项目与脑损伤的常见症状保持一致。这些发现表明，目前形式的SDQ-P可能不是对儿童ABI人群精神健康困难的可靠有效评估方法，需要进一步调查。