Design and Analysis of Discrimination Tests

SENS1

Duration : 2.0 day(s)

:: Course Summary

Discriminative tests are used to determine if sensory differences exist between two or more than two products. Several tests exist. It is therefore important to know what they are used for and what statistical tools are available for the data analysis.

:: Learning Objectives

Upon completion of this training course, participants will be able to:

Choose the right difference test based on the objectives saught

Understand the concept of risk and its impact on the conclusions

Implement the chosen method

Interpret and draw conclusions from the results

:: Target Audience

Professionals who need to use discrimination tests to compare food and non-food products.

:: Prerequisite

This two-day training session covers the fundamental concepts of sensory evaluation and statistics in the use of discrimination tests. No prerequisite is required.

:: Notes and Other Information

Participants will receive an EXCEL macro, developped by Creascience, for the analysis of the tests covered during the training.

:: Topics Covered

Define the Mechanisms underlying Sensory Perception
Master Statistical Concepts in this Field to:
- Choose the Most Appropriate Test given the Study Objective
- Know and Apply the Concept of Risk
- Carry out the Test Selected
- Interpret and Draw Conclusion from Results
- Case Studies
- Software Applications
  :: Course Content
  Difference tests are the most basic sensory tests to implement and is often part of the preliminary steps of sensory study. They are used when the objective is to assess whether two products are perceived as different or similar.
  Despite their simple appearance, several different tests exists. The parameters of the test, namely, the type of test, hypotheses, number of subjects and order of presentation will depend on the context of the study and the products being evaluated and must be chosen with care.
  The goal of this training session is to empower participants to become self-sufficient in the choice and use of the different discrimination tests available in sensory evaluation. The advantages and limitations of each test is presented, along with the associated hypotheses tested and parameters to specify. Statistical analysis and interpretation of results is carried out via examples and case studies.

Upcoming Public Sessions

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