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- whether the tool needs to statically or dynamically respond to learners interactions.
- whether the primary motivation of the use case is efficiency (speed in learning) or effectiveness (quality of learning).
| Efficiency (speed) | Effectiveness (quality) | |
| Static | 1. Pre-test based | 4. Self-organized groups 5. Profile-based |
| Dynamic (i.e., Adaptive) | 7. Aggregate learner comparison | 2. Competency-based |
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