Storyline 360: Transcripts for quizzes?

This is where some solid instructional design would factor in, and I would recommend moving the conversation to "course building" rather than the product discussion forum.

In my opinion, the risk is to summary assessment, so determine if that assessment is necessary from a pedagogical perspective. If the assessment is being used to issue a certificate or because of a legal requirement, then having the answers available in the transcript may be a big risk to the certainty of the results. If the assessment is just for the emotional comfort of the learner, then they can assess their own answers as easily by reading the transcript. My internal dialogue would go like 'reads questions, make a guess, looks at answer, reacts, moves on'; and I don't need the interactivity of pressing a button to go through those same thought-processes. Adding options for the learner is not a problem, and can promote learning by allowing them to choose how they approach the material. You'll need to review the project objectives of the training to determine if that parallel modality is viable.