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Publication
Ambivalência atitudinal : Selecção de estímulos alimentares e avaliação de três medidas em quatro índices de ambivalência
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Advisor(s)
Abstract(s)
Este artigo centra-se na operacionalização da ambivalência atitudinal aplicado ao caso da
alimentação. Tem como principal objectivo aceder a indicadores de validade de três medidas de
ambivalência. No Estudo 1, foram seleccionados os estímulos. No Estudo 2, as medidas directa,
indirecta aberta e indirecta fechada, foram comparadas nos quatro índices que cada uma possibilita:
intra-componente cognitivo e afectivo, inter-componentes e ambivalência global. Como esperado, as
medidas indirectas estabelecem correlações mais fortes entre si nos índices de ambivalência global e
inter-componentes. Para estes índices a medida indirecta aberta revelou ser a mais fiável. Por último
os resultados revelam equivalência entre as escalas de atitudes unipolares e bipolares.
ABSTRACT: This article focuses on the measurement of attitudinal ambivalence applied to the case of food. Its main purpose is access to indicators of validity of three measures of ambivalence. In Study 1, were selected the stimuli. In Study 2, a direct measure and two indirect measures, an open-ended and a closed-ended, were compared in the four indexes of ambivalence that each one allows: intra-component cognitive and affective, inter-component and overall ambivalence. As expected, the indirect measures provide stronger correlations between them, in overall ambivalence and inter-components ambivalence. For these the indirect open-ended measure revealed to be the most reliable. The results also show equivalence between the scales of unipolar and bipolar attitudes.
ABSTRACT: This article focuses on the measurement of attitudinal ambivalence applied to the case of food. Its main purpose is access to indicators of validity of three measures of ambivalence. In Study 1, were selected the stimuli. In Study 2, a direct measure and two indirect measures, an open-ended and a closed-ended, were compared in the four indexes of ambivalence that each one allows: intra-component cognitive and affective, inter-component and overall ambivalence. As expected, the indirect measures provide stronger correlations between them, in overall ambivalence and inter-components ambivalence. For these the indirect open-ended measure revealed to be the most reliable. The results also show equivalence between the scales of unipolar and bipolar attitudes.
Description
Keywords
Ambivalência atitudinal Estímulos Medidas de ambivalência Ambivalence measures Attitudinal ambivalence Food stimulus
Citation
Laboratório de Psicologia, 8, 121-148
Publisher
Instituto Superior de Psicologia Aplicada