Compared to observational analysis, data from surveys have higher reliability but lower validity.
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Q11: When developing a survey, pretests can be
Q12: An unstructured interview is a "conversation" used
Q13: "Response set" occurs only when respondents select
Q14: A probe is a follow-up question used
Q15: Neither anonymity nor confidentiality can be assured
Q17: A sociogram is better than descriptive notes
Q18: Indicators are variables, such as those provided
Q19: A cover letter accompanies or precedes a
Q20: Researchers must choose their site and select
Q21: Random selection is for identifying causal relationships
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