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charneshai@hotm charneshai@hotm
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6 years ago
Screener questions are used in questionnaires to . . .
 
  a) Make sure that the sample is randomly selected
  b) Qualify a respondent for a research study
  c) Identify questions that may cause confusion
  d) Find new marker variables for future research studies
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weissdweissd
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6 years ago
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