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Why is it important to pre-test questionnaires?

Pre-testing, or pilot testing, is a critical step in developing epidemiological questionnaires. It helps identify ambiguities, confusing questions, and technical issues. By pre-testing:
- Researchers can refine the phrasing to improve clarity.
- Adjustments can be made to the structure or order of questions.
- Feedback from the pre-test can highlight potential biases or misunderstandings.

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