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Quantitative Research - Coggle Diagram

- - - -  participant loss
    - -  test on new group of participants
- - - -  Independent variables
        
      - Dependent variable
- - - -  Questionnaire
      -  Interview
      -  Telephone
  - - -  collecting data from selected individuals
      -  in a single time period
      -  single, stand-alone study
      -  does not provide sufficient perspective to make needed decisions
    - -  collect 2 or more times to measure changes over time
      -  study the dynamics of an issue over time