Validation of a new hand-held electronic appetite rating system against the pen and paper method.
This study describes the validation of a new electronic appetite rating system, and a statistical variance model for visual analogue scale (VAS) research. Thirty volunteers rated hunger, fullness, desire to eat, prospective intake, thirst and liking on 100mm paper VAS and on 70 mm electronic VAS presented on a Dell Pocket PC, after consuming breakfast, in a repeated trial. The electronic method was comparable in relative accuracy and reproducibility to the paper method, with weak differences between tests (within-subject SD < or =14 mm). The data obtained were used to generate a model for VAS data variability.
Nestlé Research Centre, Vers-Chez-les Blanc, CH-1000 Lausanne 26, Switzerland.
Eva
E
Almiron-Roig
Hilary
H
Green
Robert
R
Virgili
Jean-Marc
JM
Aeschlimann
Mireille
M
Moser
Alfrun
A
Erkner
D000328:Adult; D001066:Appetite / Q000502:physiology*; D004435:Eating / Q000502:physiology / Q000523:psychology; D004581:Electronics; D005260:Female; D006801:Humans; D006815:Hunger; D008297:Male; D010147:Pain Measurement; D010209:Paper; D015203:Reproducibility of Results; D012527:Satiation; D012680:Sensitivity and Specificity; D012684:Sensory Thresholds; D011795:Surveys and Questionnaires; D013894:Thirst