It is now possible to define the starting position of a slider in the question type semantic differential inside of questfox.
Go to the settings of the specific question and find the definition of the position underneath the upload of the slider. Every position of a defined scale can be selected.
The screen looks like this:
The question will be then shown during the interview like this:
This setting has no influence on the data situation. Data is only saved, once the slider has been moved to a specific position.
More information about questfox on www.questfox.com