微信成瘾量表在大学生中的信效度评价

Reliability and validity of the WeChat addiction scale in college students

目的评价微信成瘾量表(WeChat addiction scale, WAS)用于大学生中的信度和效度。方法采用方便抽样,于2018年9—10月对贵州4所大学和温州1所大学的1200名大学生进行问卷调查,调查内容包括性别、年级、微信使用目的和时间、WAS、手机成瘾量表和Young成瘾问卷,WAS包括2个维度,12个条目。结果探索性因素分析显示特征值大于1的有2个公因子,解释总变异为62.31%;验证性因素分析的拟合指标分别为:χ2/df≈3.116,P<0.001,Tucker-Lewis指数=0.918,比较拟合指数=0.934,近似误差均方根=0.061(0.050,0.071),标准化残差均方根=0.047;WAS的失控/时间管理维度和渴望/社交问题维度与失控性、戒断性、逃避性、低效性和Young网络成瘾测验的相关系数在0.242~0.380,均具有统计学意义。条目5和8存在着非一致性条目功能差异;WAS内部一致性信度为0.912(0.903,0.921),重测信度为0.718(0.579,0.839);问卷的辨识度为0.956(0.951,0.961)。结论 WAS具有良好的信效度,问卷辨识度很高,能够有效地测量到大学生的微信成瘾水平。

OBJECTIVE To evaluate the reliability and validity of WeChat addiction scale(WAS) in college students. METHODS A total of 1200 college students were selected by stratified handy sampling, and gender, age, objective and time of we-chat use, WAS, mobile phone addiction index scale(MPAIS) and Young internet addiction test(IAT). WAS has 12 items and 2 dimension. RESULTS There were two factors more than eigenvalue 1 though exploratory factor analysis, could be explain 62.31% of the total variance. The fit indexes of confirmatory factor analysis were χ2/df≈3.116,P<0.001,TLI=0.918,CFI=0.934,RMSEA=0.061(0.050,0.071),SRMR=0.047. The correlation coefficients among each factor of WAS, MPAIS and Young IAT were 0.242-0.380, and there were statistical significance. There were non-uniform DIF in item 5 and item 8. The Cronbach’s α coefficient of WAS was 0.912(0.903, 0.921), and test-retest reliability was 0.718(0.579, 0.839). The delta coefficient was 0.956(0.951, 0.961). CONCLUSION The reliability and validity were perfect for the revised WAS in college students. There was high questionnaire discrimination.