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What happened to President Nixon?
Representative Sample
A subset of a population that accurately reflects the members of the entire population.
Self-administered Questionnaires
Surveys or questionnaires that individuals complete on their own without interviewer guidance or interference.
Face-to-face Interviews
A method of quantitative or qualitative research where questions are asked directly to respondents in person, facilitating immediate and personalized responses.
Stamped Self-addressed Envelope
An envelope with the sender's name and address on it, provided with postage, and used for the purpose of receiving a reply or document.
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