Quantitative Descriptive Analysis

The QDA method was first published in 1974 (Stone, et al.) introducing a procedure for quantifying sensory descriptive perception. The method also introduced several concepts new to descriptive testing including individual data rather than consensus opinion and graphic line scaling. QDA is consumer...

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Bibliographic Details
Published inDescriptive Analysis in Sensory Evaluation pp. 287 - 318
Main Authors Sidel, Joel L, Bleibaum, Rebecca N, Tao, K.W. Clara
Format Book Chapter
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 23.02.2018
Subjects
behavior modification
consumer‐based language
Diagnostic Descriptive Analysis (DDA)
graphic rating scale
product optimization
quantification
replication
spider plots
subject performance measures
univariate and multivariate analyses
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ISBN0470671394
9780470671399
DOI10.1002/9781118991657.ch8

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Summary:The QDA method was first published in 1974 (Stone, et al.) introducing a procedure for quantifying sensory descriptive perception. The method also introduced several concepts new to descriptive testing including individual data rather than consensus opinion and graphic line scaling. QDA is consumer oriented in panel selection, training, and attribute language, and is useful for several product development and marketing activities including Product Optimization research. The following chapter describes several product applications, the evolution of QDA to Tragon QDA®, and Diagnostic Descriptive Analysis (DDA). It also describes the procedure, rationale, and behavioral science supporting the method.
ISBN:0470671394
9780470671399
DOI:10.1002/9781118991657.ch8