Abstract:
INTRODUCTION:The Power of Food Scale measures appetite for, rather than consumption of, palatable foods - a construct frequently designated as hedonic hunger. The purpose of this study was to examine the psychometric properties of a Portuguese version of the Power of Food Scale, namely reliability and construct validity. MATERIAL AND METHODS:Data was obtained from 1266 adult participants sampled from three different populations in Portugal: two nonclinical samples and one multi-center sample of severely obese candidates for weight-loss surgery. RESULTS:We found that the factor structure of the Portuguese version of the Power of Food Scale is similar to that of the original scale and that the Portuguese version of the Power of Food Scale has good internal structure, test-retest reliability and construct validity. In addition, we provide the first contribution towards defining population norms for Power of Food Scale scores. DISCUSSION:The Portuguese version of the Power of Food Scale proved to have good psychometric properties: it is a valid and reliable tool for measuring hedonic hunger, supporting its use both in clinical and non-clinical samples, as well as in prospective studies. CONCLUSION:Our results show that the Portuguese version of the Power of Food Scale is a useful measure for researchers and clinicians who are interested in exploring the construct of hedonic hunger in Portuguese-speaking populations, including those suffering from obesity. :Introdução: A Power of Food Scale é uma escala que avalia um constructo designado por fome hedónica, frequentemente definido como o apetite por alimentos de elevada palatibilidade, mais do que a sua ingestão propriamente dita. Este estudo teve como objetivo a caracterização das propriedades psicométricas de uma versão portuguesa da Power of Food Scale, nomeadamente da sua fiabilidade e validade de constructo. Material e Métodos: Os dados foram obtidos de 1266 participantes adultos, provenientes de três amostras distintas: duas amostras não clínicas e uma amostra clínica de indivíduos com obesidade severa, candidatos a cirurgia da obesidade. Resultados: Verificamos que a estrutura factorial da versão portuguesa da Power of Food Scale é semelhante à do questionário original e que apresenta fiabilidade teste-reteste e validade de constructo adequadas. Adicionalmente, apresentamos neste estudo o primeiro contributo para a definição de normas populacionais para os scores da Power of Food Scale. Discussão: A versão portuguesa da Power of Food Scale apresentou boas propriedades psicométricas: é um instrumento válido e fiável para a avaliação do constructo fome hedónica, suportando a sua utilização tanto em amostras clínicas como não clínicas, bem como em estudos longitudinais. Conclusão: Estes resultados demostram que a versão portuguesa da Power of Food Scale é um instrumento útil, tanto em contexto clínico, como de investigação, nomeadamente para o estudo do constructo fome hedónica em populações de língua portuguesa, incluindo populações clínicas de indivíduos com obesidade.
journal_name
Acta Med Portjournal_title
Acta medica portuguesaauthors
Ribeiro G,Santos O,Camacho M,Torres S,Mucha-Vieira F,Sampaio D,Oliveira-Maia AJdoi
10.20344/amp.6517subject
Has Abstractpub_date
2015-09-01 00:00:00pages
575-82issue
5eissn
0870-399Xissn
1646-0758journal_volume
28pub_type
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journal_title:Acta medica portuguesa
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pub_type: 杂志文章,评审
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