Summary of Performance of GPT-3.5, GPT-4, and Student Cohorts
| Category | Student mean score (%) | GPT-3.5 score (%) | GPT-4 score (%) | Students (n) |
|---|---|---|---|---|
| Written assignment marking | ||||
| Instrumentation | 71.0 | 46.0 | 50.0 | 13 |
| Nuclear medicine | 63.5 | 41.2 | 58.8 | 11 |
| Pharmacology | 67.7 | 32.5 | 60.0 | 81 |
| Written assignment AI scores (Turnitin) | ||||
| Instrumentation | — | 100.0 | 73.0 | 13 |
| Nuclear medicine | — | 67.0 | 73.0 | 11 |
| Pharmacology | — | 74.0 | 68.0 | 81 |
| Calculation examination marking | ||||
| Radiopharmacy | 67.3 | 24.0 | 66.1 | 12 |
| Pharmacology | 63.3 | 38.8 | 52.0 | 81 |
| Final examination marking | ||||
| Instrumentation | 60.4 | 47.1 | 55.8 | 13 |
| Radiopharmacy | 60.0 | 50.5 | 52.9 | 12 |
| Nuclear medicine | 63.0 | 55.2 | 56 | 11 |
| Pharmacology | 47.3 | 66.2 | 79.8 | 81 |