Developed by Teri Rhodes and Ron Roedel
|Purpose||To assess students’ understanding of wave phenomena in an integrated upper-division engineering course on electronic and electromagnetic topics.|
|Format||Pre/post, Multiple-choice, Multiple-response|
|Focus||Waves / Optics Content knowledge (visualization of waves, mathematical depiction of waves, wave definitions)|
Sample questions from the WCI:
This is the third highest level of research validation, corresponding to at least 3 of the validation categories below.
Research Validation Summary
Based on Research Into:
- Student thinking
- Student interviews
- Expert review
- Appropriate statistical analysis
- At multiple institutions
- By multiple research groups
- Peer-reviewed publication
The multiple-choice questions on the WCI were developed by the instructors of an integrated electrical engineering course covering quantum mechanics and Schrödinger’s wave equation as well as Maxwell’s wave equations and their application to the propagation of electromagnetic waves. The questions were given to focus groups of students who discussed the questions and came to a consensus answer to each question. Subsequently, the questions were revised. The WCI has been given to over 100 juniors in an electrical engineering course at one university. There are two peer-reviewed publication presenting WCI data.
- T. Reed-Rhoads and R. Roedel, The Wave Concept Inventory - A Cognitive Instrument Based on Bloom’s Taxonomy, , 1999.
- R. Roedel, S. El-Ghazaly, T. Reed-Rhoads, and E. El-Sharawy, The Wave Concepts Inventory - An Assessment Tool for Courses in Electromagnetic Engineering, , Report No. F2A, 1998.
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Typical Scores on the WCI from Roedel et. al 1998:
Method Pre-test (%) Post-test (%) Change (%) Normalized gain (%)
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The latest version of the WCI, released in 1998, is version 1.