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13.6

1997

Sensory Analysis: Paired Comparison Test (IM)

Abstract

This test is used for the following purposes:

1.1 Directional Difference Test. To determine in what way a particular sensory characteristic differs between two samples, e.g. more sweet or less sweet.

1.2 Paired Preference Test. To establish whether a preference exists between 2 samples, e. g. in consumer tests.

1.3 Assessor training. To select train and perfect assessors. The Paired Comparison Test is one of the simplest and most used sensory tests. It is often used first to determine whether other, more complicated tests should be applied. Different methods of interpretation are used, depending on the test objective, and it is necessary from the outset to distinguish between two sided (bilateral) and one sided (unilateral) test situations.

Descriptors: Directional Difference Test, Two sided Test, One sided Test, Level of significance


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