科学态度量表(SAI Ⅱ)中文修订版的信效度分析

On Psychometric Evaluation of the Scientific Attitude Inventory-Revised(SAIⅡ)Chinese Version

采用Brislin翻译法对科学态度量表(SAI Ⅱ)进行中文修订,采用方便抽样的方法抽取549名大学生完成该量表,并使用因素分析法、项目分析等考察其信度和效度.549份问卷的验证性因素分析表明,科学态度量表的原因子结构未得到支持;对量表进行探索性因子分析和验证性因子分析,共提取出3个因子,即修订后的问卷包括科学职业、理解和解释、批判思维共3个因子,各个题目在相应因子上的载荷在0.32~0.82之间,且3个维度均不具备良好的效度指标和信度指标.此外,总量表的内部一致性信度未达到0.8.分析结果表明,中文修订版SAI Ⅱ不具有良好的信度和效度,不适合用于评价中国大学生的科学态度.

English version of SAI II has been translated into Chinese version by BRISLIN method, and the Chinese version scale has been distributed to549 undergraduates chosen by convenient sample, based on which data has been analyzed by factor analysis and item analysis in order to evaluate its reliability and validity. Results show that original factor structure is not supported by confirmatory factor analysis （CFA）. Three factors are abstracted by exploration factor analysis （EFA） and CFA, including science vocation, understanding and explaining, and critical thinking. In addition, item factor loading is between 0.32 to 0.82, and these three factor haven t satisfied validity indexes. Besides, Cronbach ＇s oefficients oftotal scale wereless than 0.8. According to analysis above, the SAI IIdoes not have satisfactory psychometric properties, and is not suitable to evaluate Chinese undergraduate students scientific attitude.