摘要
目的研制并评价慢性HBV感染者歧视测量量表(the chronic hepatitis B virus infectionrelated stigma scale,HBVSS)简化版。方法通过便利抽样的方法选取1058名慢性HBV感染者进行调查,随机抽取其中529名被试对象作为训练样本,用经典测量理论和项目反应理论的方法进行条目筛选;剩下529名被试对象作为考核样本,用于评价简化版量表的心理测量学特性。结果每个维度保留了2个较优的条目(感知的羞辱维度保留了4个条目),形成12条目的简化版量表(HBVSS-12)。HBVSS-12 Cronbach’sα系数为0.903,各维度Cronbach’sα系数介于0.670~0.856之间;验证性因子分析拟合度指标为:标准化残差均方和平方根=0.038,近似误差均方根=0.074,比较拟合指数=0.958,非规准适配指标=0.937;项目反应理论分析显示各条目区分度介于1.22~2.71之间,难度参数介于-3.24~3.15之间,条目平均信息量介于0.413~1.711之间。与原量表相比,HBVSS-12的各维度仍能保留56.23%~82.72%的信息量,总量表保留了73.20%的信息量。结论HBVSS-12具有良好的信度、效度和项目质量,可以作为慢性HBV感染相关歧视研究的简单有效工具。
Objective To develop and evaluate a shortened version of the chronic hepatitis B virus infection-related stigma scale(HBVSS).Methods A total of 1058 people with chronic HBV-infections were administered by convenient sampling method in this study.The data of 529 subjects were randomly selected as a training sample for item screening by classical test theory and item response theory(IRT).The data of the remaining 529 subjects were used as a validation sample to evaluate the psychometric properties of the shortened version scale.Results 2 better items remained within each dimension(perceived stigma dimension remained 4 items)of the original HBVSS,a shortened version HBVSS-12 was formed.Cronbach’αof HBVSS-12 was 0.670-0.856 for each dimension and 0.903 for the total scale.Confirmatory factor analysis showed acceptable goodness-of-fit(standardized root mean square residual=0.038,root mean square error of approximation=0.074,comparative fit index=0.958 and Tucker-Lewis index=0.937).IRT discrimination parameters were estimated to be 1.22-2.71 and difficulty parameters,-3.24-3.15.Average item information ranged from 0.413-1.711.Compared with the original scale,the average information of HBVSS-12 was reserved from 56.23%-82.72%for each dimension and 73.20%for the total scale.Conclusion The HBVSS-12 showed good reliability,validity,and item quality,making it simple and effective for assessing chronic HBV infection-related stigma.
作者
吾尔肯·朱马江
林晓
王莹
郝元涛
WUERKEN Zhu-ma-jiang;LIN Xiao;WANG Ying;HAO Yuan-tao(Department of Medical Statistic,School of Public Health,Sun Yat-sen University,Guangzhou 510080,China;Global Health Institute,Sun Yat-sen University,Guangzhou 510275,China)
出处
《中华疾病控制杂志》
CAS
CSCD
北大核心
2021年第6期716-721,共6页
Chinese Journal of Disease Control & Prevention
基金
国家科技重大专项(2018ZX10715004)
广东省基础与应用基础研究基金(2020A1515110230)。
