Best practice recommendations for attribute order in Check-All-That-Apply (CATA) and related test methodologies

Sara King/ August 22, 2015/ Poster/ 0 comments

It is well documented that the position of attributes in a Check-All-That-Apply (CATA) question can bias responses. As positional biases cannot be eliminated, they are balanced across products via experimental designs, ensuring each attribute appears with equal frequency in each position for each product. But what is the best way to allocate attribute list orders?

Check-All-That-Apply questions

Sara King/ October 14, 2014/ Book Chapter/ 0 comments

Sensory characterization is one of the most powerful, sophisticated, and extensively applied tools in sensory science. Descriptive analysis with trained assessors has been traditionally used for sensory characterization. Due to the cost of time and money required for its application, several novel methodologies, which do not require training, have been recently developed and are gaining popularity as quick and reliable

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Existing and new approaches for the analysis of CATA data

Sara King/ December 16, 2013/ Peer-reviewed Paper/ 0 comments

Check-all-that-apply (CATA) questionnaires have seen a widespread use recently. In this paper, we briefly review some of the existing approaches to analyze data obtained from such a study. Proposed extensions to these methods include a generalization of Cochran’s Q to test for product differences across all attributes, and a more informative penalty analysis.

A consumer-validated CATA list for whole grain breads

Sara King/ August 11, 2013/ Poster/ 0 comments

Check-all-that-apply (CATA) questions are increasing being used to investigate consumers’ product perceptions. We sought to evaluate a new process for validating CATA terms for consumer relevance prior to testing. The proposed method allows an opportunity for consumer feedback on a proposed CATA list without a more expensive pre-trial questionnaire involving real products.

Do panellists donkey vote in sensory Choose-All-That-Apply questions?

Sara King/ July 26, 2009/ Oral Presentation/ 0 comments

A so-called donkey voter selects candidates according to position on an election ballot. Are untrained sensory panellists similarly influenced by position when responding to choose-all-that-apply (CATA) questions? In sensory and consumer testing, lists of choices, conventionally presented in fixed order, allow panellists to indicate sensory perceptions without requirements for scaling. Results help in understanding products and drivers of hedonic response.

Experimental consideration for the use of Check-All-That-Apply (CATA) questions to describe the sensory properties of orange juices

Sara King/ July 26, 2009/ Poster/ 0 comments

Check-all-that-apply (CATA) questions have been used in consumer studies to determine key sensory attributes characterizing a specific product. CATA has the particularity of assessing perceived product attributes without requiring scaling. The objective was to determine the effects of the number and order of the choices in CATA questions on attribute selection and consumer response time.