The concept map as a research tool: Exploring conceptual change in biology
The concept map as a research tool: Exploring conceptual change in biology
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概念图作为研究工具：探索生物学概念的变化
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
J. Mintzes
中科院分区：
文献类型：
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作者：
J. Wallace;J. Mintzes
本研究旨在探讨概念图作为记录和探索生物学概念变化的工具的并发有效性。参加基础科学方法课程的学生（N = 91）被随机分配到两个治疗组之一。两组受试者都被要求完成一份多项选择/自由回答的清单，该清单分析了他们对“海洋中的生命区”的知识，然后要求他们构建一个关于同一主题的概念图。随后，实验组的人接受了45分钟的关于海洋生物区的计算机辅助教学，而对照组（“安慰剂”）的人则接受了同等的无关主题（“身体防御”）。完成教学序列后，受试者再次管理的“生命区”清单，并要求制定一个postinstruction概念图的海洋生物区。数据分析采用重复测量的裂区析因设计。通过方差分析和卡方程序记录治疗组间的差异。实验组的受试者在概念图中发现，知识库的复杂性和介词结构发生了重大而实质性的变化。对照组未发现此类变化。结果表明，概念映射提供了一个有效的和潜在的有用的技术，记录和探索生物学概念的变化。
This study examined the concurrent validity of concept maps as vehicles for documenting and exploring conceptual change in biology. Students (N = 91) who enrolled in an elementary science methods course were randomly assigned to one of two treatment groups. Subjects in both groups were administered a multiple-choice/free-response inventory which assayed their knowledge of “Life Zones in the Ocean,” and then were asked to construct a concept map on the same topic. Those in the experimental group subsequently received 45 minutes of computer-assisted instruction on marine life zones, while those in the control (“placebo”) group received an equivalent exposure to an unrelated topic (“Body Defenses”). Upon completing the instructional sequence, subjects were again administered the “Life Zones” inventory and asked to develop a postinstruction concept map on marine life zones. The data analysis employed a split plot factorial design with repeated measures. Differences among treatment groups were documented by analysis of variance and chi-square procedures. Subjects in the experimental group showed evidence of significant and substantial changes in the complexity and prepositional structure of the knowledge base, as revealed in concept maps. No such changes were found in the control group. Results suggest that concept mapping offers a valid and potentially useful technique for documenting and exploring conceptual change in biology.