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Related Experiment Video

Updated: Jun 6, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Published on: August 29, 2025

What makes a measurement instrument valid and reliable?

Vanessa A Scholtes¹, Caroline B Terwee, Rudolf W Poolman

¹Department of Orthopaedic Surgery, Joint Research, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands. v.a.b.scholtes@olvg.nl

|December 15, 2010

Summary

This paper explains how to assess the quality of clinical instruments by evaluating their reliability and validity using standardized criteria from the COSMIN group. It provides examples for trauma research, offering a guide for instrument quality assessment.

Related Experiment Videos

Last Updated: Jun 6, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Published on: August 29, 2025

Area of Science:

Clinical measurement
Health sciences research methodology

Background:

High-quality instruments are crucial for reliable clinical and research outcomes.
Assessing measurement properties like reliability and validity is essential for determining instrument quality.
Standardized criteria are needed for consistent evaluation of measurement instruments.

Purpose of the Study:

To discuss quality domains and measurement properties of clinical instruments.
To introduce the standardized criteria recently published by the COSMIN group for assessing measurement properties.
To provide practical examples of evaluating instrument properties in trauma research.

Main Methods:

Discussion of measurement properties including reliability and validity.
Application of the COSMIN group's standardized criteria for quality assessment.
Review of existing studies evaluating instruments used in trauma research.

Main Results:

The paper outlines key measurement properties and quality domains for assessing instruments.
It demonstrates how to apply COSMIN criteria to evaluate instrument reliability and validity.
Examples illustrate the assessment process for instruments commonly used in trauma studies.

Conclusions:

The COSMIN criteria offer a standardized framework for evaluating the quality of measurement instruments.
Reliability and validity are key properties that must be rigorously assessed.
This paper serves as a practical guide for researchers and clinicians evaluating instrument quality.