Investigation of bias of hedonic scores when co-eliciting product attribute information using CATA questions

Sara R. Jaeger*, Davide Giacalone, Christina M. Roigard, Benedicte Pineau, Leticia Vidal, Ana Giménez, Michael B. Frøst, Gaston Ares

*Kontaktforfatter for dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Sensory and consumer scientists disagree on the practice of concurrently obtaining sensory information in hedonic tests. This is in part due to different mindsets about what consumers are able to do and evidence that such co-elicitation may bias hedonic scores. Check-all-that-apply (CATA) questions have been claimed to have a smaller effect on hedonic scores than other attribute such as just-about-right or intensity scales. In this research, nine studies using consumers as participants examined effects on hedonic product scores when sensory attribute information was co-elicited using CATA questions. The use of CATA concurrently with hedonic was benchmarked against concurrent attribute liking scores, attribute intensity scores and just-about-right scaling. Across a range of product categories (beer, fresh fruit, tea, flavoured water, crackers, savoury dips), only weak and transient evidence of bias of hedonic scores when concurrently using CATA questions was established. This effect was independent on whether samples, on average were moderately liked or moderately disliked, and replicated when samples were assessed partially by the sense of smell only or via full product assessment (appearance, aroma, flavour, taste, aftertaste, mouthfeel). The present research suggests that co-elicitation of hedonic scores and product attribute information using CATA questions may bias the hedonic scores, but not that it certainly will do so. This needs to be recognised, leading to more widespread acceptance that co-elicitation has merit. Investigators should decide on whether or not to co-elicit product attribute information using CATA questions on a case-by-case basis, acknowledging that bias may occur. Further research is needed to understand when/when not bias is likely to occur.

OriginalsprogEngelsk
TidsskriftFood Quality and Preference
Vol/bind30
Udgave nummer2
Sider (fra-til)242-249
Antal sider8
ISSN0950-3293
DOI
StatusUdgivet - dec. 2013
Udgivet eksterntJa

Fingeraftryk

Pleasure
savory
crackers
mouthfeel
raw fruit
smell
beers
Satureja
tea
Research
sensory properties
flavor
odors
Smell
sampling
Fruit
Research Personnel
water
testing

Emneord

  • Attribute scaling
  • CATA
  • Consumer research
  • Hedonic scaling
  • JAR
  • Research methodology

Citer dette

Jaeger, Sara R. ; Giacalone, Davide ; Roigard, Christina M. ; Pineau, Benedicte ; Vidal, Leticia ; Giménez, Ana ; Frøst, Michael B. ; Ares, Gaston. / Investigation of bias of hedonic scores when co-eliciting product attribute information using CATA questions. I: Food Quality and Preference. 2013 ; Bind 30, Nr. 2. s. 242-249.
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title = "Investigation of bias of hedonic scores when co-eliciting product attribute information using CATA questions",
abstract = "Sensory and consumer scientists disagree on the practice of concurrently obtaining sensory information in hedonic tests. This is in part due to different mindsets about what consumers are able to do and evidence that such co-elicitation may bias hedonic scores. Check-all-that-apply (CATA) questions have been claimed to have a smaller effect on hedonic scores than other attribute such as just-about-right or intensity scales. In this research, nine studies using consumers as participants examined effects on hedonic product scores when sensory attribute information was co-elicited using CATA questions. The use of CATA concurrently with hedonic was benchmarked against concurrent attribute liking scores, attribute intensity scores and just-about-right scaling. Across a range of product categories (beer, fresh fruit, tea, flavoured water, crackers, savoury dips), only weak and transient evidence of bias of hedonic scores when concurrently using CATA questions was established. This effect was independent on whether samples, on average were moderately liked or moderately disliked, and replicated when samples were assessed partially by the sense of smell only or via full product assessment (appearance, aroma, flavour, taste, aftertaste, mouthfeel). The present research suggests that co-elicitation of hedonic scores and product attribute information using CATA questions may bias the hedonic scores, but not that it certainly will do so. This needs to be recognised, leading to more widespread acceptance that co-elicitation has merit. Investigators should decide on whether or not to co-elicit product attribute information using CATA questions on a case-by-case basis, acknowledging that bias may occur. Further research is needed to understand when/when not bias is likely to occur.",
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year = "2013",
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Investigation of bias of hedonic scores when co-eliciting product attribute information using CATA questions. / Jaeger, Sara R.; Giacalone, Davide; Roigard, Christina M.; Pineau, Benedicte; Vidal, Leticia; Giménez, Ana; Frøst, Michael B.; Ares, Gaston.

I: Food Quality and Preference, Bind 30, Nr. 2, 12.2013, s. 242-249.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Investigation of bias of hedonic scores when co-eliciting product attribute information using CATA questions

AU - Jaeger, Sara R.

AU - Giacalone, Davide

AU - Roigard, Christina M.

AU - Pineau, Benedicte

AU - Vidal, Leticia

AU - Giménez, Ana

AU - Frøst, Michael B.

AU - Ares, Gaston

PY - 2013/12

Y1 - 2013/12

N2 - Sensory and consumer scientists disagree on the practice of concurrently obtaining sensory information in hedonic tests. This is in part due to different mindsets about what consumers are able to do and evidence that such co-elicitation may bias hedonic scores. Check-all-that-apply (CATA) questions have been claimed to have a smaller effect on hedonic scores than other attribute such as just-about-right or intensity scales. In this research, nine studies using consumers as participants examined effects on hedonic product scores when sensory attribute information was co-elicited using CATA questions. The use of CATA concurrently with hedonic was benchmarked against concurrent attribute liking scores, attribute intensity scores and just-about-right scaling. Across a range of product categories (beer, fresh fruit, tea, flavoured water, crackers, savoury dips), only weak and transient evidence of bias of hedonic scores when concurrently using CATA questions was established. This effect was independent on whether samples, on average were moderately liked or moderately disliked, and replicated when samples were assessed partially by the sense of smell only or via full product assessment (appearance, aroma, flavour, taste, aftertaste, mouthfeel). The present research suggests that co-elicitation of hedonic scores and product attribute information using CATA questions may bias the hedonic scores, but not that it certainly will do so. This needs to be recognised, leading to more widespread acceptance that co-elicitation has merit. Investigators should decide on whether or not to co-elicit product attribute information using CATA questions on a case-by-case basis, acknowledging that bias may occur. Further research is needed to understand when/when not bias is likely to occur.

AB - Sensory and consumer scientists disagree on the practice of concurrently obtaining sensory information in hedonic tests. This is in part due to different mindsets about what consumers are able to do and evidence that such co-elicitation may bias hedonic scores. Check-all-that-apply (CATA) questions have been claimed to have a smaller effect on hedonic scores than other attribute such as just-about-right or intensity scales. In this research, nine studies using consumers as participants examined effects on hedonic product scores when sensory attribute information was co-elicited using CATA questions. The use of CATA concurrently with hedonic was benchmarked against concurrent attribute liking scores, attribute intensity scores and just-about-right scaling. Across a range of product categories (beer, fresh fruit, tea, flavoured water, crackers, savoury dips), only weak and transient evidence of bias of hedonic scores when concurrently using CATA questions was established. This effect was independent on whether samples, on average were moderately liked or moderately disliked, and replicated when samples were assessed partially by the sense of smell only or via full product assessment (appearance, aroma, flavour, taste, aftertaste, mouthfeel). The present research suggests that co-elicitation of hedonic scores and product attribute information using CATA questions may bias the hedonic scores, but not that it certainly will do so. This needs to be recognised, leading to more widespread acceptance that co-elicitation has merit. Investigators should decide on whether or not to co-elicit product attribute information using CATA questions on a case-by-case basis, acknowledging that bias may occur. Further research is needed to understand when/when not bias is likely to occur.

KW - Attribute scaling

KW - CATA

KW - Consumer research

KW - Hedonic scaling

KW - JAR

KW - Research methodology

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