Tag Archives: CATA

How do static and dynamic sensory product characterizations based on check-all-that-apply questions? Insights from three consumer studies

Temporal check-all-that-apply (TCATA) is basically an extension of CATA questions and measures the dynamics of sensory perception. Despite the similarities between both methodologies, no study has yet compared static and dynamic sensory product characterizations obtained with CATA and TCATA with consumers, respectively. Continue reading How do static and dynamic sensory product characterizations based on check-all-that-apply questions? Insights from three consumer studies

Statistical evaluation of panel repeatability in Check-All-That-Apply questions

Methodologies for evaluating panel repeatability in Check-All-That-Apply (CATA) questions are reviewed and developed. First, the limitations with using McNemar’s test as suggested elsewhere for the evaluation of repeatability are demonstrated through simple examples. Alternative approaches are then suggested and discussed. Continue reading Statistical evaluation of panel repeatability in Check-All-That-Apply questions

A cost/benefit analysis of consumer CATA and trained descriptive analysis

Two panels evaluated 6 whole grain breads in duplicate. The consumer panel (n=93), drawn from an active database, used 32 CATA sensory and emotion terms to describe samples, and gave hedonic responses. The FCM® trained descriptive panel (n=12), drawn from a pool of trained assessors, used a common lexicon of 57 defined sensory attributes. Multivariate sensory spaces for CATA and DA results were obtained. RV coefficients indicate that each panel was repeatable. The RV coefficient indicated greater dissimilarity in the products than results from MFA, which suggested reasonable agreement in profiles. Continue reading A cost/benefit analysis of consumer CATA and trained descriptive analysis

Sugar reduction in probiotic chocolate-flavored milk: Impact on dynamic sensory profile and liking

Reducing the sugar content of processed products has been claimed to be one of the most efficient strategies for decreasing sugar intake. The present work aimed at studying the influence of sugar reduction on the dynamic sensory profile and consumers’ liking of probiotic chocolate-flavored milks using a novel temporal methodology, and to evaluate two alternatives (vanilla flavor and thaumatin) to attenuate the sensory changes caused by sugar reduction. Continue reading Sugar reduction in probiotic chocolate-flavored milk: Impact on dynamic sensory profile and liking

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

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

Check-All-That-Apply questions

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 options for gathering sensory information. These methodologies enable the study of consumers’ perceptions of the sensory characteristics of products. However, information on these techniques is scattered in scientific journal articles, which hinders their application and creates a need for a book to assemble the details of the latest advances. Continue reading Check-All-That-Apply questions

Existing and new approaches for the analysis of CATA data

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. Continue reading Existing and new approaches for the analysis of CATA data

Existing and new approaches for analysing data from Check All That Apply questions

Check-All-That-Apply (CATA) questions are increasingly being incorporated into consumer tests because they provide a simple mechanism for consumers to communicate their perceptions of products being evaluated. We review existing and propose new approaches for analysing data obtained from such a study. Continue reading Existing and new approaches for analysing data from Check All That Apply questions

A consumer-validated CATA list for whole grain breads

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. Continue reading A consumer-validated CATA list for whole grain breads