By J Delarue, B Lawlor, M Rogeaux
Sensory research is a vital instrument in new product improvement. There has lately been major improvement within the equipment used to seize sensory belief of a product. Rapid Sensory Profiling Techniques offers a complete evaluate of quick tools for sensory research that may be used as choices or complementary to traditional descriptive tools. half one seems on the evolution of sensory conception catch equipment. half specializes in swift tools used to seize sensory belief, and half 3 covers their functions in new product improvement and shopper study. ultimately, half 4 explores the purposes of fast tools in trying out particular populations.
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Additional info for Rapid Sensory Profiling Techniques: Applications in New Product Development and Consumer Research
Example text
Measure product liking. There are numerous methods described in the literature but only few are used to any degree of frequency. The most frequently used methods are described here. 1. Paired-comparison method is a two-product test; both products are coded, and the subject’s task is to indicate which one has more of a specific characteristic, such as sweetness. There are two orders of presentation – AB and BA. As long as one could specify the attribute and the subjects recognized it, the method is quite useful, because of its simplicity in terms of instructions and implementation.
This type of test is like a sorting task but with more sensory fatigue potential. These methods are often developed within an industry and are unique to that industry; however, the sensory fatigue issue is a concern. In addition to these multi-product tests, considerable attention has been given to expanding the subject’s activities during a test, most often associated with the triangle method. Some of these changes have used a 4-product set. The main focus has been to promote various statistical hypotheses claiming significantly improved sensitivity, reduced β risk, and a concomitant reduction in the number of subjects in a test to less than 50.
This is a surprising claim, as there are no data to support that statement. 25, etc. As the number of products in a test increases from two to three to four, the amount of product exposure increases as does sensory fatigue. In addition, the test becomes a memory game as subjects try to remember their perceptions when responding. If one thinks in terms of product exposure, the triangle test has the most and the paired test, the least. For the triangle test, there are three comparisons to reach a decision: A vs B, A vs C and B vs C.