创伤后应激障碍检查表-平民版在地震灾区初中生中的信效度

目的 检验创伤后应激障碍检查表-平民版(The PTSD Checklist Civilian Version,PCL-C)在地震后初中生中的信效度.方法 采用PCL-C中文版,Rosenberg自尊量表和SCL-90对560名汶川大地震受灾初中生进行了测试,间隔约9周后,307人参加了重测.结果 首先,PCL-C中文版全量表克隆巴赫alpha系数为0.888,再体验、回避和过度唤起或高警觉三个因子的alpha系数分别为0.734,0.789,0.722.重测相关系数分别为再体验0.40(P＜0.01),回避0.45(P＜0.01),过度唤起或高警觉0.448(P＜0.01),全量表0.535(P＜0.01).其次,PCL总分及三个因子与自尊存在较低的负相关(r=-0.192～-0.299,P＜0.01),与SCL-90总分和SCL-90中的抑郁、焦虑和精神病性因子存在中等以上的显著正相关(r=0.563～0.775,P＜0.01).最后,实证效度的结果显示,PCL-C筛查阳性组比筛查阴性组在SCL-90的9个因子和总分上的得分要高,且达到了统计学显著水平(P＜0.001).结论 创伤后应激障碍检查表平民版在地震受灾的初中生群体中具有良好信效度,可用于PTSD症状严重程度的评估.

Psychometric properties of the PTSD checklist-civilian version among junior school students from earthquake-hit region

Objective To test psychometric properties of the PTSD checklist-civilian version(PCL-C) among junior school students from earthquake-hit region.Methods PC L-C Chinese Version, Rosenberg self-esteem scale and SCL-90 were utilized to assess 560 junior school students from earthquake-hit region.Results Firstly,the internal consistency of the total scale and three subscales were qualified, the coefficient alphas were 0.890,0.734,0.789 and 0.722, respectively; 307 participants, from the first samples, engaged in the second test two months after the first assessment.The test-retest stability was re-experiencing 0.40(P ＜ 0.01 ) ,avoidance 0.45 (P＜ 0.01 ), hyper-arousal 0.448 (P ＜ 0.01 ), total scale 0.535 (P ＜ 0.01 ), respectively.Secondly, the results of criteria validity showed PCL-C and its three subscales had negative correlation with self-esteem (r =-0.192 ～-0.299, P ＜ 0.01 ), and had positive-related with SCL-90 and its subscales of depression, anxiety, and psychotic (r=0.563 ～0.775, P＜0.01 ).Finally,the results of empirical validity revealed that based on the score on PCL-Ccould differentiate those people who have significant different scores on SCL-90.Conclusions The PCL-C hadgood reliabilities and validities,which could be used to assess the severity of PTSD.