Samples & Design: Tetrad Test - Single
Overview
The number of samples and their blinding codes play an important role in your
Tetrad
test setup. The template test distributed with our software is set up as a single Tetrad test type. The double (back to back) Tetrad test type is available in the advanced version of the software only.
In both Tetrad test types, there can be only one Tetrad
question in the questionnaire (the back to back part is handled by the
Samples & design
).
In the workflow on this page we will focus on steps specific to
single Tetrad tests
. Please visit the workflows listed below for other scenarios:
Please go into the
Samples & design
tab of your
single Tetrad test
to follow the steps in this workflow.
Single Tetrad test template is pre-set with two samples and the
standard design for single Tetrad tests. This cannot be changed.
Modify Sample Sets
-
In the Sample sets field, type the number of sample sets required in the test.
The default is 42 samples sets. A suggested minimum number of complete results (sample sets) to run Tetrad analysis is 30. -
(Optional) Place a checkmark in the Shuffle sample set order checkbox.
-
Click Save. Two samples with default information will be listed.If you selected Shuffle sample set order checkbox, you will have the Shuffle and save button instead.
To verify what the sample order is like, click View design, or go to the Logistics tab and run the Serve reports .
Edit Sample Information
Update the sample information to suit your testing needs (these are optional steps).
-
Type new Blinding codes . Tetrad tests require that each sample has two blinding codes because each sample is seen twice in each tetrad.
-
Type the Sample name for each sample. This information will be visible in the analysis reports, and it can be made visible to panelists if desired by using Wildcards .
-
Select the Sample type that corresponds to your samples. Selections made here do not affect analysis in any way. They are for your information.
-
Click anywhere on the page to save the changes
. A message at the bottom of the screen will inform you whether the changes were successfully saved.
Sample numbers
can be rearranged in a test that is not running, by clicking on the
icon and dragging the row of information into another row.
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