Compare a live demonstration with a verbal explanation

A demonstration-versus-explanation trial should use a task that can be checked, such as identifying a part or completing a simple decision.

A practical procedure

1. Choose one product question and define the information both formats must communicate.

2. Prepare a visible demonstration and a verbal explanation using the same verified facts.

3. Ask reviewers to complete the same understanding check after each format.

Worked example: a fictional session

A fictional test asks viewers to identify the release tab after either watching the latch operate or hearing its location described.

Check the limits

A task requiring visual identification may favour the visual format; state that scope.