What is the definition of Respondents Engineering?

"Respondents engineering" is like the evil genius who's always tweaking and optimizing surveys to get exactly the data they want, without really caring about the respondents' feelings or sanity. It's the process of tweaking questionnaires until they're as precise as a broken mirror, but with more questions and less empathy.

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Here's an unsettling example sentence: "The researchers decided to engineer respondents' anxiety levels by adding a question about their pet's favorite color, hoping to get a more accurate measurement of their stress."