摘要目的:汉化前驱期问卷-儿童版（PQ-BC），并在中小学生群体中进行信效度检验。方法:采用Brislin模式对PQ-BC进行翻译、回译和文化调适，完成中文版PQ-BC的编制。采用分层整群随机抽样，于2024年8~10月选取江苏省3个地区的10所中小学的学生，进行中文版PQ-BC、抑郁-焦虑-压力量表（DASS-21）以及长处与困难问卷（SDQ）评估。对中文版PQ-BC进行项目分析，使用探索性和验证性因子分析检验结构效度，将DASS-21和SDQ作为效标量表评价效标关联效度，通过内部一致性、折半信度评价量表的信度。结果:PQ-BC各条目分与总分（ r=0.345~0.668）、各痛苦分与总痛苦分均呈正相关（ r=0.337~0.668）（均 P<0.001）。探索性因子分析显示PQ-BC的条目总分与痛苦总分均呈单因子结构，累积方差贡献率分别为70.2%和69.5%。PQ-BC的条目总分、痛苦总分与DASS-21和SDQ（前社会化行为除外）的各个因子均呈正相关（ r=0.214~0.587，均 P<0.001）。PQ-BC条目分和痛苦分的Cronbach′s α系数分别为0.930和0.938，二者的折半信度分别为0.932和0.942。 结论:中文版PQ-BC具有单因子结构，并展现出良好的信度与效度，适用于中小学生精神病性经历的早期识别和分层筛查。

abstractsObjective:To translate and culturally adapt the Prodromal Questionnaire-Brief Child Version (PQ-BC) into Chinese and to evaluate its reliability and validity among primary and secondary school students.Methods:Following the Brislin translation model, the PQ-BC was translated, back-translated, and culturally adapted to develop the Chinese version. Using stratified cluster random sampling, students from ten primary and secondary schools across three regions in Jiangsu Province were selected between August and October 2024 to complete the Chinese PQ-BC, the Depression-Anxiety-Stress Scale-21 (DASS-21), and the Strengths and Difficulties Questionnaire (SDQ). Item analysis was performed for the PQ-BC. Structural validity was examined using exploratory and confirmatory factor analyses, and criterion validity was assessed using the DASS-21 and SDQ. Reliability was evaluated by internal consistency and split-half reliability.Results:All item scores and distress scores of the PQ-BC were significantly positively correlated with their respective total scores (item score: r=0.345-0.668; distress score: r=0.337-0.668, all P<0.001). Exploratory factor analysis supported a one-factor structure for both item and distress scores, explaining 70.2% and 69.5% of the variance, respectively. Both total scores and total distress scores were positively correlated with all factors of DASS-21 and SDQ (except prosocial behavior) ( r=0.214-0.587, all P<0.001). Cronbach′s α was 0.930 for symptom scores and 0.938 for distress scores, and split-half reliability coefficients were 0.932 and 0.942, respectively. Conclusion:The Chinese version of the PQ-BC demonstrates a stable one-factor structure with excellent reliability and validity in primary and secondary school students, supporting its use for early identification and stratified screening of psychotic-like experiences.