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

What data do you need? Gather direct and indirect evidence of learning QUICK LOOK:
  • 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.  

When selecting evidence for the current