引用本文:韦嘉1,2, 郭磊2, 张进辅2.表述效应对平衡量表内部一致性信度的影响[J].西南大学学报(自然科学版),2017,39(8):133~139
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表述效应对平衡量表内部一致性信度的影响
韦嘉1,2, 郭磊2, 张进辅2
作者单位
韦嘉1,2, 郭磊2, 张进辅2 1. 四川师范大学 教育科学学院成都 610068; 2. 西南大学 心理学部重庆 400715 
摘要:
通过蒙特卡洛模拟研究考察平衡量表中源自条目不同计分方向的表述效应及量表内因素对测量结果内部一致性信度系数α系数和组合信度(CR)系数的影响.方差分析结果验证了研究假设:表述效应使平衡量表的α系数与CR系数被高估,高估程度随方法因子负荷升高(F(2,392)=345.10,344.87,p<0.001),不同计分条目比例失衡(F(2,392)=8.03,8.32,p<0.001),方法因子间相关(F(4,392)=7.14,7.02,p<0.001) 和特质因子负荷的降低(F(2,392)=411.96,410.49,p<0.001) 而加剧.表明编制量表时,须提升条目质量并尽量使不同计分条目数相等.
关键词:  表述效应  平衡量表  α系数  组合信度  蒙特卡洛模拟研究  
DOI:10.13718/j.cnki.xdzk.2017.08.019
分类号:
基金项目:国家自然科学基金项目(31400897);教育部人文社会科学研究青年基金(15YJC190003)
The Influence of the Method Effect Associated with Item Wording on the Internal Consistency Reliability of Balanced Scale
WEI Jia1,2, GUO Lei2, ZHANG Jin-fu2
Abstract:
Monte Carlo simulation was made to investigate the laws and characteristics of how wording effect (or the Method Effect Associated with Item Wording) and its relevant endogenous factors affected the internal consistency reliability coefficient, Cronbach's α and composite reliability coefficient of the outcomes of measurement. Then multifactor variance analysis was made, in which five independent variables were manipulated: method factor loading of item, trait factor loading of item, ratio of different scoring items, correlation between different method factors and sample size. The results showed that both Cronbach's α and composite reliability coefficient in the balance scale would be overestimated due to the item wording effect and that the extent of overestimation increased with the increase in the item's method factor loading (F(2, 392)=345.10 and 344.87, p < 0.001) and the decrease in imbalance of different scoring items (F(2, 392)=8.03 and 8.32, p < 0.001), correlation between different method factors (F(4, 392)=7.14 and 7.02, p < 0.001), or item's trait factor loading (F(2, 392)=411.96 and 410.49, p < 0.001). The results suggested that the completely balanced scale was better under the condition of improving the psychometric properties of items.
Key words:  the method effect associated with item wording  balanced scale  Cronbach's α  composite reliability coefficient  Monte Carlo simulation  
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