ERIC Number: EJ1076691
Record Type: Journal
Publication Date: 2015
Abstractor: As Provided
Reference Count: 23
Do Experts and Novices Direct Attention Differently in Examining Physics Diagrams? A Study of Change Detection Using the Flicker Technique
Morphew, Jason W.; Mestre, Jose P.; Ross, Brian H.; Strand, Natalie E.
Physical Review Special Topics - Physics Education Research, v11 n2 p020104-1-020104-6 Jul-Dec 2015
It is known that experts identify or perceive meaningful patterns in visual stimuli related to their domain of expertise. This study explores the speed with which experts and novices detect changes in physics diagrams. Since change detection depends on where individuals direct their attention, differences in the speed with which experts and novices detect changes to diagrams would suggest differences in attention allocation between experts and novices. We present data from an experiment using the "flicker technique," in which both physics experts and physics novices viewed nearly identical pairs of diagrams that are representative of typical introductory physics situations. The two diagrams in each pair contain a subtle difference that either does or does not change the underlying physics depicted in the diagram. Findings indicate that experts are faster at detecting physics-relevant changes than physics-irrelevant changes; however, there is no difference in response time for novices, suggesting that expertise guides attention for experts when inspecting physics diagrams. We discuss the cognitive implications of our findings.
Descriptors: Expertise, Novices, Physics, Visual Aids, Science Process Skills, Introductory Courses, Learning Processes, Comparative Analysis, Reaction Time, Difficulty Level, Knowledge Level, Attention, Hypothesis Testing, Undergraduate Students, Educational Psychology
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Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Authoring Institution: N/A
Identifiers - Location: Illinois