Discrimination Analyses
Same/Different Test Analysis
Available from version: 5.0.8.6 Purpose The Same Different Test is a discrimination test that is a variation of the paired comparison test. The assessor is presented with two samples and is asked to decide whether these samples are the same or ...
Discrimination Analyses Overview
Overview Difference tests are the fundamental and most frequently used methods in sensory and consumer research. The most important questions difference tests must answer are: do various products differ from each other? And does the consumer detect ...
Discrimination Test Settings - Pd and d' Analysis
Purpose Establish the power of a discrimination test given a set sample size or to calculate the sample size required to get a desired power. This can be done specifying the expected difference as a proportion of discriminators (Pd) or as a ...
2-AFC, 3-AFC, Duo Trio, Triangle, Tetrad Analysis
Purpose Analyse results from one of the following tests: 2-AFC, 3-AFC, Duo-Trio, Triangle, Tetrad. Data Format Discrimination.xlsx Results of the discrimination test are binary (1 = correct answer, 0 = incorrect answer) Background 2-AFC Test This is ...
A not A Analysis
Purpose Analyse results from the A-not-A test. Data Format Discrimination_AnotA.xls Data type is binary. Background The A-not-A discrimination test is a variation of the paired comparison test. It is an unspecified test with a probability of guessing ...
Different From Control Test Analysis
Purpose To analyse the results of a different from control test. Data Format Different from control.xlsx Attribute data type is ‘category’. Background Different from control tests can determine: If a difference exists between a product vs. reference. ...
R-index Analysis
Purpose To analyse the results of an R-index test. Data Format R_index_rank_withMD.xlsx Background The R-index applies signal detection theory as an alternative approach to discrimination testing. It is often used where there are a large number of ...
Paired Comparison Analysis
Purpose To analyse the results of a paired comparison test. Data Format paired_comparison.xlsx Datatype for the attribute is pairedcomp. Background A paired comparison test is a directional / specified test. It is used as a difference test with 2 ...
Popular Articles
2-AFC, 3-AFC, Duo Trio, Triangle, Tetrad Analysis
Purpose Analyse results from one of the following tests: 2-AFC, 3-AFC, Duo-Trio, Triangle, Tetrad. Data Format Discrimination.xlsx Results of the discrimination test are binary (1 = correct answer, 0 = incorrect answer) Background 2-AFC Test This is ...
Discrimination Test Settings - Pd and d' Analysis
Purpose Establish the power of a discrimination test given a set sample size or to calculate the sample size required to get a desired power. This can be done specifying the expected difference as a proportion of discriminators (Pd) or as a ...
How Can I Import a Custom Design?
How Can I Import a Custom Design? If your preferred design cannot be created using the design generator, a custom design can be created using excel and imported into an EQ project. To import a custom design, go to the design page of your project. ...
How Do I Generate an Experimental Design
In EyeQuestion you can generate different kind of experimental design. Some experimental designs are already included in the application, while specific ones can be imported. In the following article you will find more information on this kind of ...
How to Modify a Design from Monadic Sequential to Block Design
Introduction When creating a questionnaire, it could occur that you need to modify a design that initially presents samples to panelists in a monadic sequential order and instead switch to a block design where all samples are presented at once. In ...