中文版乳腺癌幸存者自我效能感量表信效度分析

摘要

Background Self - efficacy contributes to symptom management of cancer survivors,ultimately overall quality of life can be improved. Objective To translate the Breast Cancer Survivors Self - efficacy Scale(BCSES)into Chinese and to test the reliability and validity of the Chinese version of BCSES(C - BCSES). Methods By using convenience sampling method,250 breast cancer survivors who met inclusion criteria in the First Affiliated Hospital of Zhengzhou University were selected as study subjects. The BCSES was translated into Chinese version by using Brinslin's translation model. From July 2015 to November 2015,the C - BCSES and the Chinese version of general self - efficacy scale(GSES)were used to conduct a survey among the breast cancer survivors. The reliability and validity of C - BCSES were analyzed. Results A total of 250 questionnaires were distributed,and 242 questionnaires were returned with an effective recovery rate of 96. 8%. Patients were sorted according to the score of the C - BCSES in descending order,31. 0%(75 / 242)of patients who got the highest score were included in high score group,and 31. 4%(76 / 242)of patients who got the lowest score were included in low score group. The score of each item in low score group was significantly lower than that in high score group( P < 0. 05). The average content validity index of C - BCSES was 0. 913,the content validity index of items ranged from 0. 821 to 1. 000. The total score was positively correlated with each item score( P < 0. 05 ) . The KMO was 0. 825,and Bartlett' s test was also acceptable with P < 0. 001( χ2 = 530. 692),thus exploratory factor analysis can be performed. One factor with eigenvalue equal to or greater than 1. 000 was extracted by exploratory factor analysis,the cumulative contribution rate of which was 47. 362% ,and the load value of each item was greater than 0. 40. Confirmatory factor analysis was performed to support the results,with an acceptable fit(χ2 / df = 1. 228, goodness - of - fit index = 0. 915,adjusted goodness - of - fit index = 0. 901,root - mean - square error of approximation= 0. 042,comparative goodness - of - fit index = 0. 923). The score of C - BCSES was positively correlated with score of Chinese version of GSES( r = 0. 518,P < 0. 01). The Cronbach's α coefficient of C - BCSES was 0. 912,the split half reliability coefficient was 0. 845,the test - retest coefficient was 0. 706. Conclusion The C - BCSES has been proved to be reliable and valid,which can be used to evaluate self - efficacy of breast cancer survivors.%背景自我效能感有助于癌症患者的症状管理，最终提高其整体生活质量。目的汉化乳腺癌幸存者自我效能感量表（BCSES），并评价其中文版信效度。方法采用便利抽样法，选取郑州大学第一附属医院符合纳入标准的乳腺癌患者250例为调查对象。采用 Brislin 翻译模式对 BCSES 进行汉化，形成中文版 BCSES。于2015年7—11月，采用中文版 BCSES、中文版一般自我效能感量表（GSES）对患者进行调查。分析中文版 BCSES 的信效度。结果共发放问卷250份，回收有效问卷242份，有效回收率为96.8%。将患者按中文版 BCSES 得分从高到低排序，得分最高的31.0%（75/242）患者组成高分组，得分最低的31.4%（76/242）患者组成低分组。低分组患者各条目得分均低于高分组（P ＜0.05）。中文版 BCSES 的内容效度指数（ CVI）为0.913，各条目的 CVI 为0.821~1.000。中文版BCSES 总分与各条目得分均呈正相关（P ＜0.05）。中文版 BCSES 的 KMO =0.825，Bartlett＇s 球形检验χ2=530.692，P＜0.001，表明适合做探索性因子分析。根据因子特征值≥1.000的标准，共提取了1个公因子，累积贡献率为47.362%，且各条目的载荷值均＞0.40。验证性因子分析结果显示，χ2/ df =1.228，拟合优度指数为0.915，调整拟合优度指数为0.901，近似误差均方根为0.042，比较拟合优度指数为0.923。中文版 BCSES 得分与中文版 GSES 得分呈正相关（r =0.518，P ＜0.01）。中文版 BCSES 的 Cronbach＇s α系数为0.912，分半信度系数为0.845，重测信度为0.706。结论中文版 BCSES 具有良好的信效度，可用于评价乳腺癌幸存者的自我效能感。