This article describes a questionnaire designed for the evaluation of appetite. In three clinical pharmacology experiments with the classical methods of control, the questionnaire was utilised to compare a standard anorexiant, dextroamphetamine, with a placebo and three doses of a new drug. The questionnaire was found to be effective and appropriate as regards content, construct, concurrent and predictive validity. This validation, which is usually neglected, shows how one may assess subjective phenomena with security. The questionnaire on appetite is proposed as a tool for the evaluation of primary and secondary effects of drugs and for the study of the evolution of any disease which might affect appetite.

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Gagnon, M.A, & Tetreault, L. (L.). (1975). Human pharmacology of anorexiants; validity of a questionnaire on appetite PHARMACOLOGIE HUMAINE DES ANOREXIGENES; VALIDITE D'UN QUESTIONNAIRE SUR L'APPETIT. UN.MED.CANADA, 104(6), 922–929.