WebAudioEvaluationTool
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AB Test built with the Test Creator allows user to progress without selecting an option
When using the test creator for an AB test, there's no way to force the user to select an option before progressing.
I noticed in the examples that this was enforced using the 'scalerange' option with a custom error message. But there's no way to build this using the test creator, I have to add it in manually. Even using the 'Enforce a scale usage' option doesn't work when 'Interface' type is AB.
I guess the default behaviour really should be one of the shown options must be selected to continue anyway. @BrechtDeMan do you agree?
I'd say either
- One of the shown options must be selected to continue, but there is the option to also add a 'neither' button; or
- the options can be left blank, but there is an option to enforce answering (like it is now except it doesn't work) - this could be by overriding the scalerange behaviour, or by introducing a new function, whichever is more semantic/elegant etc.
In some cases one should be able to select nothing at all, e.g. 'I don't hear a difference', 'I don't have a preference', etc.