Development and Application of a Diagnostic Instrument to Evaluate Grade-11 and -12 Students' Concepts of Covalent Bonding and Structure Following a Course of Instruction.
Development and Application of a Diagnostic Instrument to Evaluate Grade-11 and -12 Students' Concepts of Covalent Bonding and Structure Following a Course of Instruction.
复制标题
开发和应用诊断仪器来评估 11 年级和 -12 年级学生在教学课程后的共价键和结构概念。
DOI：
10.1002/tea.3660260404
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发表时间：
1989
影响因子：
4.6
通讯作者：
P. Garnett
中科院分区：
文献类型：
--
作者：
R. Peterson;D. Treagust;P. Garnett
本文首先概述了一种用于开发书面诊断工具的程序，以确定11年级和12年级学生对化学主题共价键和结构的误解和误解。要教授的内容通过概念图和命题陈述进行了仔细的定义。在指导之后，学生通过访谈、学生绘制的概念图和自由回答的问题来确定学生对该主题的理解。这些数据被用来制作15个两级多项选择题，其中第一级考察了内容知识，第二级考察了对六个概念领域的知识的理解，即键极性、分子形状、分子极性、晶格、分子间力和八位组规则。该诊断仪器共对243名11年级和12年级的化学学生进行了测试，其Cronbachα信度为0.73。项目难度在0.13~0.60之间，区分值在0.32~0.65之间。每一项都被分析，以确定学生对共价键和结构背后的概念和命题陈述的理解和识别的误解。
This article initially outlines a procedure used to develop a written diagnostic instrument to identify grade-11 and -12 students' misconceptions and misunderstandings of the chemistry topic covalent bonding and structure. The content to be taught was carefully defined through a concept map and propositional statements. Following instruction, student understanding of the topic was identified from interviews, student-drawn concept maps, and free-response questions. These data were used to produce 15 two-tier multiple-choice items where the first tier examined content knowledge and the second examined understanding of that knowledge in six conceptual areas, namely, bond polarity, molecular shape, polarity of molecules, lattices, intermolecular forces, and the octet rule. The diagnostic instrument was administered to a total of 243 grade-11 and -12 chemistry students and has a Cronbach alpha reliability of 0.73. Item difficulties ranged from 0.13 to 0.60; discrimination values ranged from 0.32 to 0.65. Each item was analyzed to ascertain student understanding of and identify misconceptions related to the concepts and propositional statements underlying covalent bonding and structure.