A Psychometric Evaluation of the Colorado Learning Attitudes about Science Survey for Use in Chemistry
A Psychometric Evaluation of the Colorado Learning Attitudes about Science Survey for Use in Chemistry
复制标题
科罗拉多州化学科学调查学习态度的心理测量评估
DOI：
10.1021/ed100590t
复制
发表时间：
2012
影响因子：
3
通讯作者：
J. Lewis
中科院分区：
文献类型：
--
作者：
Keily Heredia;J. Lewis
本文的目的是评估科罗拉多州科学学习态度调查（CLASS）的心理测量特征。采用该仪器对美国某公共机构普通化学I实验室的311名大学生进行了测试。采用验证性因子分析和Cronbach估计来检验CLASS工具评分的信度和效度。讨论了有关这一过程的详细信息。初步结果显示，缺乏同时测量九个CLASS子量表的所有构念的证据。然而，进一步的工作，包括直接从CLASS中提取的两个小型单尺度仪器的管理，表明可以从CLASS中获得简洁，易于管理的个体构造测量。
The purpose of this paper is to evaluate the psychometric properties of The Colorado Learning Attitudes about Science Survey (CLASS). The 50-item instrument was administered to 311 college students from a public institution in the United States enrolled in General Chemistry I Laboratory. Confirmatory factor analysis and Cronbach's estimates were used to examine the reliability and validity of the CLASS instrument scores. Detailed information regarding this process is discussed. Initial results revealed a lack of evidence for simultaneous measurement of all of the constructs underlying the nine CLASS subscales. However, further work, including the administration of two small, single-scale instruments taken directly from CLASS, suggests that concise, easy-to-administer measures of individual constructs can be derived from CLASS.