干旱内陆河流域冰冻圈变化适应对策问卷的信效度检验

摘要

[目的]对干旱内陆河流域冰冻圈变化适应对策问卷的信效度进行检验.[方法]运用统计学的方法,对乌鲁木齐河、阿克苏河流域的"典型干旱内陆河流域冰冻圈变化适应对策研究"问卷进行信度与效度的检验,以考查问卷的稳定性和准确性.[结果]问卷信度分析结果表明,乌鲁木齐河流域和阿克苏河流域问卷的折半信度系数分别为0.729和0.750,克朗巴哈α信度系数分别为0.613和0.616,说明问卷具有较好的等值性与内部一致性,可靠性和稳定性较高.根据问卷效度分析结果,绝大部分题目得分与问卷总分呈显著相关,内容效度较高;经因子分析,26道题目共产生8个公共因子,可概括为农业种植状况、农业节水措施、生活满意度、耕地变化、社会融合感、气候与冰冻圈变化、环境改善资本投入、家庭经济条件8个指标,各题项在相应指标上贡献率较高,所体现的结构与问卷所测内容完全一致,说明问卷具有较好的结构效度.[结论]设计的问卷具有较高的稳定性和准确性,能够准确测出所需测量的主题和内容,适用于西北干旱内陆河流城普通民众对冰冻圈变化的感知状况及适应性对策选择的研究.%[ Objective] The aim was to test the reliability and validity of questionnaire on the adaptation strategy of cryosphere changes in arid inland river basin. [ Method] A questionnaire on “the adaptation strategy of cryosphere changes in arid inland river basin” was carried out in Urumchi River basin and Aksu River basin, and its reliability and validity were tested by means of statistical methods, so as to investigate the stability and accuracy of questionnaire. [ Result] Reliability analysis of questionnaire showed that the split-half reliability coefficient of questionnaire in Urumchi River basin and Aksu River basin was 0.729 and 0. 750, respectively, and Cronbach' s a reliability coefficient was 0.613 and 0. 616, which revealed that the questionnaire had good equivalence and internal consistency which reflected good reliability and stability.According to validity analysis of questionnaire, there was significant correlation between the score of most questions and total score of questionnaire, and it showed that questionnaire had high content validity; 8 common factors were collected from 26 questions and were summarized as follows, namely agricultural planting, agricultural water conservation, life satisfaction, cultivated land variation, social integration sense, climate and cryosphere changes, capital input improved by environment and family economic condition, meanwhile, the contribution rate of vatious questions in corresponding indexes was higher, and reflected construct was in full accord with questionnaire content, which revealed that questionnaire owned good construct validity. [ Conclusion] With higher stability and accuracy, the questionnaire could determine the desired topic and content and was suitable for the study on the perception of common people and choices of adaptive strategy under cryosphere changes.