A Psychometric Evaluation of the Colorado Learning Attitudes about Science Survey for Use in Chemistry
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- 作者：Keily Heredia ; Jennifer E. Lewis
- 刊名：Journal of Chemical Education
- 出版年：2012
- 出版时间：March 13, 2012
- 年：2012
- 卷：89
- 期：4
- 页码：436-441
- 全文大小：187K
- 年卷期：v.89,no.4(March 13, 2012)
- ISSN：1938-1328
文摘
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鈥檚 伪 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.