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.
Almiron-Roig
Eva
E
Nestlé Research Centre, Vers-Chez-les Blanc, CH-1000 Lausanne 26, Switzerland.
Green
Hilary
H
Virgili
Robert
R
Aeschlimann
Jean-Marc
JM
Moser
Mireille
M
Erkner
Alfrun
A
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