A new restaurant wants to determine whether it should add a vegan burger to its menu. It decides to survey gym-goers using a questionnaire with a mix of closed and open-ended questions. To ensure validity and reliability, which of the following should the restaurant avoid?

Question

Answer

Testing the same questionnaire twice on the same group to check for consistent results.

Answer

Ensuring that all questions are logically ordered and clearly worded in simple language.

Answer

Asking a large number of gym-goers, even if most don't follow a vegan diet.

Answer

Including a mix of structured questions and opportunities for free-form responses.

Crowdly

A new restaurant wants to determine whether it should add a vegan burger to its ...

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