Article

What makes a measurement instrument valid and reliable?

Department of Orthopaedic Surgery, Joint Research, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands.
Injury (impact factor: 1.98). 03/2011; 42(3):236-40. DOI:10.1016/j.injury.2010.11.042 pp.236-40
Source: PubMed

ABSTRACT High quality instruments are useful tools for clinical and research purposes. To determine whether an instrument has high quality, measurement properties such as reliability and validity need to be assessed, using standardised criteria. This paper discusses these quality domains and measurement properties using the standardised criteria that were recently published by the COSMIN group. Examples are given of studies evaluating the measurement properties of instruments frequently used in trauma. This paper presents a helpful tool for readers who want to evaluate or assess the quality of a measurement instrument on reliability and validity.

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Keywords

COSMIN group
 
helpful tool
 
instruments
 
measurement instrument
 
measurement properties
 
paper discusses
 
paper presents
 
quality domains
 
quality instruments
 
reliability
 
research purposes
 
standardised criteria
 
trauma