Here you can define test variables, which are determined before the questions will be displayed (in short: pre-variables). If you wish to use these test variables as random parameters in your questions, they need to be linked to question variables. The value is assigned before the first question will be displayed. Please note that all variable assignments in the question will override the linked values.
The following examples for using (pre-processed) test variables demonstrate possible application scenarios:
Define test variables, which will be recalculated each time after submitting a question (in short: post-variables). The value calculation may include values determined during the test, such as the participant's responses, score or the number of attempts made. This allows to monitor points and errors, and thus to control subsequent questions, hints or feedback content.