Some epidemiologists have never been study participants and it shows.
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It a whole discipline, very nuanced. Looks simple and easy when done right. About 1,000,000 ways for it to go so so wrong.
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a fair amount of that subjectivity can be removed by adding context to the question I find.
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Eg. Questionnaire asks you by name (parent, not primary study participant) how many people, other than primary study participant, live in household. All of us unclear, whether that number should include survey taker or not. So data from that Q debatable?
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I design test questions for industrial safety training. With the number of revisions I've made, I can imagine the challenge of creating study surveys. Language, culture, education, and experience all influence how someone perceives what they read.
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