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| Action | D3 (N) | D4 (N) | Overall (N) |
|---|---|---|---|
| Identify need (no prompt required) | 60% (12) | 75% (15) | 68% (27) |
| Not able to identify need independently | 40% (8) | 20% (4) | 30% (12) |
| Identify location (no assistance required) | 65% (13) | 70% (14) | 68% (27) |
| Complete experiment in two minutes | 10% (2) | 20% (4) | 15% (6) |
