DESIGN QUESTIONS IN SENSORY AND CONSUMER SCIENCE

In any sensory measurement, the analyst's main concern is to acquire t he correct and best quality data as economically as possible The corre ct data depend on the purpose Of the measurement, the type and number of samples, and practical constraints, such as the time available for designing executing and reporting the study. Choice of sensory method and testing environment should be considered here. Good quality data m eans data that are a good reflection of some true value and have littl e associated uncertainty; that is accuracy and precision. Many of the practical questions that arise when designing sensory measurements aff ect these aspects, such as the number and type of assessors, frequency or amount of testing; sample presentation and sample order Economical experimentation means choosing the most efficient design, and will of ten conflict with getting the best quality data.