Basic Survey Designs

• Longitudinal

  • Cohort
    • Same specific population studied over time (may be different samples).
    • Why do a cohort analysis?
      • Compare changes in same cohort in different years (e.g., Sophomore Survey responses in 2000 to Sophomore Survey responses in 2002)
      • Compare differences between cohorts in the same year (e.g., Sophomore Survey responses in 2002 to Graduating Senior Survey responses in 2002)

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