Measuring Knowledge and Learning
41 Pages Posted: 2 May 2022 Last revised: 11 Dec 2024
There are 3 versions of this paper
Measuring Knowledge and Learning
Measuring Knowledge
Date Written: April 2022
Abstract
Empirical studies in the economics of education, the measurement of skill gaps, the impacts of interventions on skill formation, and the value-added literature rely on psychometrically validated test scores. Test scores are taken as measures of an invariant scale of human capital compared over time and people. We examine if conventional skill measures are comparable on mastery of specific task knowledge. An unusually rich dataset from an early childhood intervention is used to test the assumption of scale invariance. We reject the scale invariance hypothesis for multiple skills and cast doubt on the uncritical use of test scores in research.
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