Evidence of learning

Sample Sizes Needed for 5% Error Margin

Sample Sizes Needed for 5% Error Margin (Suskie, 2018) Number of students from which to draw samples Random sample size


1000 278 500 217 350 184 200 132 100 80 50 44

Gather Step 1: Identify Types & Sources of Evidence

  • Direct evidence is tangible, observable, and self-explanatory. Collect multiple lines of direct evidence of student learning for each PLO being assessed.
  • Indirect evidence adds contextual information about student learning, but alone is insufficient for outcomes assessment.  
What data do you need? Gather direct and indirect evidence of learning  TOOLS ​​​​& TIPS

When selecting evidence for the current assessment cycle, consider the varied purpos