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Model summary

mnipper edited this page Nov 26, 2013 · 3 revisions

An Instrument is a set of Questions, and a Survey is a set of Responses. A Question can potentially have many Options if a Question has a discrete set of answers that may be possible. A Survey has a corresponding Instrument, which links the Responses back to the Questions.


  • Instrument: Set of Questions
  • Question: Can potentially have a set of Options
  • Option: A potential answer to a Question (for example, for a multiple choice question)
  • Survey: Set of Responses. Has an Instrument.
  • Response: Participant response to a question.