Author(s):
Ribeiro, Luís Pedro ; Eklund, Patrik ; Gomes Alves Ferreira, Maria Augusta ; Magalhães Ribeiro, Anabela de ; Farinha, Maria Conceição ; Paiva, Maria Adelaide ; Gonçalves, Tânia ; de Almeida Fontes, Ana Paula ; Pinheiro, João
Date: 2024
Persistent ID: http://hdl.handle.net/10400.1/26243
Origin: Sapientia - Universidade do Algarve
Subject(s): Assessment instruments; Health; Quality of life; Visual analogue scales; Assessment instruments; Assessment instruments; Health; Health; Quality of life; Quality of life; Visual analogue scales; Visual analogue scales
Description
Assessment instruments for functioning in general and quality of life in particular often involve discrete scales with three, four, or five values, or Visual Analogue Scales (VAS) with a range 0–100. VAS scales often need to be downsized and discretized using intervals or clusters. Cutoff points for these intervals/clusters need to be carefully selected and justified. Our objective was to underline the importance of providing clear interpretations of many-valuedness appearing in quality-of-life (QoL) instruments, and to present a methodology for the provision of such clearness. Doing so, we view QoL scales as originating within the World Health Organization (WHO).
