How to ask about patient satisfaction? The visual analogue scale is less vulnerable to confounding factors and ceiling effect than a symmetric Likert scale

Voutilainen, Ari ; Pitkäaho, Taina ; Kvist, Tarja ; Vehviläinen-Julkunen, Katri

Journal of advanced nursing, 2016-04, Vol.72 (4), p.946-957 [Periódico revisado por pares]

England: Blackwell Publishing Ltd

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