Journal of health psychology
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The objective of this work was to study the agreement between four pain intensity scales when administered electronically: the Numerical Rating Scale-11, the Faces Pain Scale-Revised, the Visual Analogue Scale and the Coloured Analogue Scale. In all, 180 schoolchildren between 12 and 19 years old participated in the study. ⋯ Agreement was calculated using the Bland-Altman method. Results show that the electronic versions of Numerical Rating Scale-11, Coloured Analogue Scale and Visual Analogue Scale can be used interchangeably.