Methodology
50 courses (25 AI, 25 human) tested with 200 learners. Same topics, same quizzes.
Findings
- Recall: tied (~78%)
- Engagement (time on task): human +22%
- Application/judgment: human +35%
- Cost-per-course: AI 1/8 of human
When to choose AI
Low-stakes recall content (facts, procedures). Use human (or AI + heavy review) for judgment.