Triangle Test

Triangle Test

Overview

Triangle test is a discrimination test type. Determine if there is a difference between products by asking panelists to select the different sample out of three samples, of which two are the same. This method is commonly used with employee panels when you have a large pool of panelists to pull from (e.g. 36+).

The pre-set Triangle test type template comes distributed with the software for you to use in a click of a button! In this workflow we will help you create a single Triangle.

Please contact our Support Team for the back to back Triangle workflow.


Question Compatibility

The Triangle test is compatible with the following question types:
  1. Choose

  2. Comment
Text/time delays are compatible with all test types and question types .


Create the Test 

  1. On the Dashboard , in the Folders list on the left, select the folder where you wish to save your new Triangle test.

    Use the right-click menu to create new sub-folders or to edit existing ones.

  2. Click Create a new test .

  3. Next to the Triangle test type , click Use .

  4. Type the test name and specify the location for it (in case the folder selected in the first step was not the right one).

  5. Click Create Test . The test will open up.
The Test ID displayed in the top right-hand corner is an important unique identifier useful for test searches. The Test ID can also be found in the Dashboard .

Please have the Test ID handy when you reach out to our Support Team for assistance.

Update the Test

Although the template test has a number of preset components that likely you will not need to modify, you will still have to update some components to make them reflect your testing needs. Please go through each test tab outlined below and make necessary changes.
  3. You can also add Triangle related Comment or Triangle related Choose questions.

    For training purposes, you may display the feedback to panelists.

    Only one Triangle question can be added in a test.


  5. Logistics


Preview and Run the Test

When all test components have been added and configured, you may preview the test and then present it to your panelists.


Analysis

Click the Results tab to access and choose from the following analysis options:
  1. Graphs - Visual representation of the data.

  2. Data - Raw data display in the form of check marks and x marks indicating whether the panelists correctly or incorrectly selected the odd sample in each triad. The Total Correct column provides the count of correct responses per panelist in the test.

  3. Reports - Create new or view previously generated reports. The following reports are compatible with the Triangle question type :
    1. Standard report - Detailed information about the tabulated results for correct and incorrect responses, d' (d prime), the p-value, and the statistical conclusion. See the Single Triangle Analysis page for details.

    2. PowerPoint report - Visual representation of the Triangle data in a PowerPoint Presentation report format.

    3. Panelist completion time report - Provides the average test completion time for the test and the total time for each panelist.

    4. Raw data export - Choose from the Multivariate, Univariate, and Multivariate Columnar raw data export formats to suit your exporting needs.

    • Related Articles

    • PowerPoint Report: Triangle Test Results

      Overview The PowerPoint Report in Triangle tests provides a visual representation of the correct/incorrect responses as a percentage, as well as a Decision of Significance. For the full page view of this workflow, please click on the icon with an ...

    • Samples & Design: Triangle Test - Single

      Overview The number of samples and their blinding codes play an important role in your Triangle test setup. You may create a single Triangle or a double (back to back) Triangle . In both Triangle types, there can be only one Triangle question in the ...

    • Standard Report: Single Triangle Test Results

      Overview The Standard Report for Single Triangle test data can provide a Difference Test and a Similarity Test. The Difference Test will provide a count of Correct and Incorrect responses as well as a statement of significance. The Similarity Test ...

    • Standard Report: Back to Back Triangle Test Results

      Overview The Standard Report for Back to Back Triangle test data can provide a Difference Test and a Similarity Test. The Difference Test will provide a count of Correct and Incorrect responses as well as a statement of significance. The Similarity ...

    • Question Type: Triangle

      Overview In Triangle questions panelists are presented with a total of 3 samples, two of one product and one of another. They are then asked to taste the samples in front of them from left to right. After they have tasted all three samples they are ...