Villafañe Sachel M, Bailey Cheryl P, Loertscher Jennifer, Minderhout Vicky, Lewis Jennifer E
Department of Chemistry, University of South Florida, Tampa, Florida 33620, USA.
Biochem Mol Biol Educ. 2011 Mar-Apr;39(2):102-9. doi: 10.1002/bmb.20464.
Biochemistry is a challenging subject because student learning depends on the application of previously learned concepts from general chemistry and biology to new, biological contexts. This article describes the development of a multiple-choice instrument intended to measure five concepts from general chemistry and three from biology that are considered prerequisite for biochemistry learning. This instrument is specifically designed with a factor structure that includes three multiple-choice items for each of the eight concepts and the most common incorrect ideas that students could have as distractors. It can be used as a pretest to identify students' incorrect ideas about those concepts and to determine if instruction helps students overcome those incorrect ideas when used as a posttest. Results from a confirmatory factor analysis support a very good fit for an eight-factor solution. This manuscript represents a report on the current state of instrument development. We seek to share our methods and instrument design principles with the broader community.
生物化学是一门具有挑战性的学科，因为学生的学习依赖于将之前从普通化学和生物学中学到的概念应用到新的生物学情境中。本文描述了一种多项选择题工具的开发，该工具旨在测量普通化学中的五个概念和生物学中的三个概念，这些概念被认为是生物化学学习的先决条件。该工具经过专门设计，其因子结构包括针对八个概念中的每一个概念的三个多项选择题，以及学生可能出现的最常见错误想法作为干扰项。它可以用作预测试，以识别学生对这些概念的错误想法，并在用作后测试时确定教学是否有助于学生克服这些错误想法。验证性因子分析的结果支持八因子解决方案的良好拟合。本手稿代表了关于工具开发现状的报告。我们寻求与更广泛的社区分享我们的方法和工具设计原则。
