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Abstract:
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Check-All-That-Apply questionnaires offer many advantages for individuals being surveyed as they reduce the complexity of the decision-making process by limiting the choice to two alternatives. However, it is important to note that two choice responses may result in less accurate information. Furthermore, this type of survey is often conducted on consumers that have no formal training, increasing the risk of obtaining noisy data as opposed to other survey methods. When our team worked on developing new methods for describing and visualizing general survey data, special attention was paid to the particular case of CATA data, and specific applications of sensory analyses where CATA surveys are commonly used. The CATARACT (CATA Rejection and Acceptation Tests) procedure offers a description of CATA surveys and allows users to extract information relative to the quality of the questionnaires in three successive steps or waterfalls (cataracts).Self-explanatory visualizations are provided to facilitate the communication of the results. The descriptive analysis part is based on techniques and approaches that are aimed at helping the analyst identify potentially suspicious observations.
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