A randomised comparison of a four- and a five-point scale version of the Norwegian Function Assessment Scale

<p>Abstract</p> <p>Background</p> <p>There is variation in the number of response alternatives used within health-related questionnaires. This study compared a four-and a five-point scale version of the Norwegian Function Assessment Scale (NFAS) by evaluating data quali...

Full description

Bibliographic Details
Main Authors: Natvig Bård, Dahl Fredrik A, Benth Jūratë, Garratt Andrew, Gulbrandsen Pål, Østerås Nina, Brage Søren
Format: Article
Language:English
Published: BMC 2008-02-01
Series:Health and Quality of Life Outcomes
Online Access:http://www.hqlo.com/content/6/1/14