Proceedings of The International Conference on Innovative Research in Education
Evidence at the Centre Stage Bridging Theory-Practice Gap in Testing
Sadhana Parashar and Priyanka Sharma
This paper discusses the significance and usage of variety of evidence from various sources, at different stages of educational testing to improve the quality of the test, especially validity of the decision drawn on the basis of the test scores about test-takers. It is not limited to, but briefly touches the principle and practices of evidence-centered Design (ECD), and tries to establish linkages at various points of the testing cycle. While emphasizing the need for an evidence-based approach of test development and interpretation of test scores, the paper also argues in favour of rigor-relevance balance. It extends to using evidence from measurement models from Classical Test Theory and Item Response Theory. However the intent is not just an academic review or psychometric analyses, but to produce usable evidence and present evidence in a simpler form to users, who may be great subject experts and instruction designers or policymakers, but may not be great measurement experts.
Keywords: Evidence-based approach, Testing, Measurement Models.