xAPI classroom signals showing how attendance and day-to-day engagement shift from Low to Medium to High performers.
The class tiers form a clean behavioral gradient: every major engagement measure rises from Low to Medium to High, and the biggest step-changes appear in self-directed learning behaviors rather than discussion alone.
The charts combine two lenses: practical gap size from Low to High tiers and model-based separation from the regression coefficients comparing the extremes.
| Rank | Factor | Low | Medium | High | Low → High gap | Extreme-tier coefficient |
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