CBE—Life Sciences Education· 2016Q1
Rasch Analysis for Instrument Development: Why, When, and How?
- 685citations
- Q1SCImago
- 2016year
Short summary
Rasch analysis offers psychometric techniques to guide the development and evaluation of surveys and tests in life sciences education.
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Key points
- Rasch analysis evaluates the measurement functioning of surveys and tests.
- It enables the creation of 'Wright maps' to clarify score meanings.
- Techniques support the development of alternative forms of tests and surveys.
- Rasch analysis optimizes instrument quality and contextualizes results for student mastery.
AI-generated from the title and abstract; the full text is not read.
Abstract
This essay describes Rasch analysis psychometric techniques and how such techniques can be used by life sciences education researchers to guide the development and use of surveys and tests. Specifically, Rasch techniques can be used to document and evaluate the measurement functioning of such instruments. Rasch techniques also allow researchers to construct "Wright maps" to explain the meaning of a test score or survey score and develop alternative forms of tests and surveys. Rasch techniques provide a mechanism by which the quality of life sciences-related tests and surveys can be optimized and the techniques can be used to provide a context (e.g., what topics a student has mastered) when explaining test and survey results.
The authors' abstract, as published at the source. CBE—Life Sciences Education, 2016 · DOI ↗
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Field: General Agricultural and Biological Sciences
General Agricultural and Biological SciencesAgricultural and Biological Sciences