Question: Homework help: Please answer all questions. A study used self-administered mail questionnaires to gather data on height and weight in order to calculate a measure

Homework help: Please answer all questions.

A study used self-administered mail questionnaires to gather data on height and weight in order to calculate a measure of obesity. Which of the following types of problems were likely avoided by this method of data collection, and why?

Interviewer bias
Exposure misclassification
Confounding
Selection bias
Loss-to-follow-up

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