Check-all-that-apply (CATA) questions for sensory product characterization by consumers : Investigations into the number of terms used in CATA questions

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Título

Check-all-that-apply (CATA) questions for sensory product characterization by consumers : Investigations into the number of terms used in CATA questions

Tema

COMPORTAMIENTO DEL CONSUMIDOR
EVALUACION SENSORIAL
PERFIL DEL CONSUMIDOR
BIBLIOGRAFIA NACIONAL QUIMICA
2015

Abstract

In recent years methodological research into application of CATA questions has gained momentum. Yet, key questions for this approach remain unaddressed – how to generate the sensory terms that populate CATA questions and how many terms should be used. The second of these questions was addressed in seven consumer studies, involving a total of 735 consumers and five product categories (crackers, cheese, fruit-flavored drinks, chocolate, milk desserts). Sensory product characterizations elicited with ‘‘short’’ and ‘‘long’’ CATA questions (10–17 terms vs. 20–28 terms) were compared on a number of criteria such as frequency of CATA term use, product differences, spatial configurations (samples and terms) and task perceptions. Two strategies for generating ‘‘long’’ lists of CATA terms were examined: adding synonym terms to those already featuring on the ‘‘short’’ list (e.g., ‘hard’ and ‘firm’), and adding antonym terms to those already featuring on the ‘‘short’’ list (e.g., ‘hard’ and ‘not hard’ or ‘natural’ and ‘artificial’). Between-subjects experimental designs were used to compare product characterizations from ‘‘short’’ and ‘‘long’’ CATA questions. Results revealed that ‘‘short’’ and ‘‘long’’ lists of CATA terms generated largely similar results. In general, sample configurations were very similar, as were task perceptions. However, there were, at times, differences in frequency of CATA term use and term configurations, as well as instances where conclusions about sample differences depended on whether ‘‘short’’ or ‘‘long’’ CATA lists were used. Additionally, here was some evidence that CATA questions with ‘‘long’’ lists of synonym or antonym terms may cause a ‘‘dilution’’ effect of the responses. This fits expectations of idiosyncrasy in consumer perception/expression of sensory stimuli, but may be associated with reduced discriminatory ability of the CATA question. How to best balance these opposing considerations is deserving of further investigation.

Autor

Jaeger, Sara R.
Beresford, Michelle K.
Paisley, Amy G.
Antúnez, Lucía
Vidal, Leticia
Silva Cadena, Rafael

Fuente

Food Quality and Preference v. 42, 2015. -- p. 154-164

Editor

Elsevier

Fecha

2015

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PDF

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Tipo

Artículo

Identificador

http://dx.doi.org/10.1016/j.foodqual.2015.02.003

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PDF
Fecha de agregación
August 12, 2015
Colección
Bibliografía Nacional Química
Tipo de Elemento
Document
Etiquetas
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Citación
Jaeger, Sara R., “Check-all-that-apply (CATA) questions for sensory product characterization by consumers : Investigations into the number of terms used in CATA questions,” RIQUIM - Repositorio Institucional de la Facultad de Química - UdelaR, accessed February 5, 2023, http://riquim.fq.edu.uy/items/show/3361.
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