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Updated: Jun 12, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
Published on: August 29, 2025
Understanding the psychometric properties of reliability and validity in assessment
Kara E McGoey1, Richard J Cowan, Phillip P Rumrill
1Duquesne University, Pittsburgh, PA, USA. mcgoeyk@duq.edu
Abstract:
This article operationalizes and describes the psychometric properties of reliability and validity within the context of assessment in rehabilitation counseling. Specifically, the authors examine those procedures by which psychometricians assess the reliability and validity of tests and other measurement instruments in the field of rehabilitation. Implications for the interpretation of scores and planning for intervention are discussed.
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