摘要
目的基于保护动机理论(PMT)编制大学生野生菌食用风险认知量表并检验其信效度。方法通过文献回顾、专家咨询编制量表,对216名大学生进行调查。采用探索性因子分析和验证性因子分析检验结构效度,用Cronbach’s α系数评估内部一致性信度,计算组合信度(CR)和平均方差提取量(AVE)评估收敛效度和判别效度。结果量表包含21个条目,分为威胁评估和应对评估两个维度,共7个因子。总体Cronbach’s α系数为0.851,各维度α系数均>0.726;KMO值为0.826,Bartlett球形检验P<0.001;各因子AVE值均>0.5,CR值均>0.75,MSV<AVE,满足收敛效度和判别效度要求。量表能有效区分不同认知水平群体(P<0.01)。结论基于PMT编制的量表具有良好信效度,可用于评估大学生野生菌风险认知水平。
Objective To develop and validate a wild mushroom consumption risk perception scale for college students based on Protection motivation theory(PMT).Methods The scale was developed through literature review and expert consultation,then administered to 216 college students.Exploratory and confirmatory factor analyses examined structural validity,while Cronbach’s α assessed internal consistency reliability.Composite reliability(CR)and average variance extracted(AVE)evaluated convergent and discriminant validity.Results The final scale contained 21 items across two dimensions(threat appraisal and coping appraisal)with seven factors.Overall Cronbach’s α was 0.851,with all dimensional α coefficients>0.726.KMO value was 0.826 with significant Bartlett’s test(P<0.001).All factors showed AVE>0.5,CR>0.75,and MSV<AVE,meeting convergent and discriminant validity requirements.The scale effectively differentiated groups with varying cognitive levels(P<0.01).Conclusion The PMT-based scale demonstrates good reliability and validity for assessing college students’wild mushroom risk perception.
作者
陈思
陈瑜
许静
李臻怡
CHEN Si;CHEN Yu;XU Jing;LI Zhenyi(China National Center for Food Safety Risk Assessment,Beijing 100022,China;School of Art and Communication,Fujian Polytechnic Normal University,Fujian Fuqing 350300,China;School of Journalism and Communication,Peking University,Beijing 100871,China;Department of Communication and Culture,Royal Roads University,Canada Victoria V9B 5Y2)
出处
《中国食品卫生杂志》
北大核心
2025年第7期649-654,共6页
Chinese Journal of Food Hygiene
基金
国家社科基金重点项目(23AXW008)。
关键词
野生菌
风险认知
保护动机理论
量表编制
Wild mushroom
risk perception
protection motivation theory
scale development
