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Model selection by AIC values, with the model selected for remaining analyses in bold type
| Model (random effects = university/subject) | AIC | Δi | wi |
|---|---|---|---|
| Assessment+pedagogy+class.size | 531.1 | 0.00 | 0.413 |
| Assessment+pedagogy+intro.or.upper+class.size | 532.3 | 1.18 | 0.228 |
| Assessment+pedagogy+biol.or.chem+class size | 532.7 | 1.61 | 0.184 |
