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Table 4 Pre-intervention scores, post-intervention scores, retention scores, and gain in scores on the written test for students in the retention group (RG)

From: Teaching the pediatric ear exam and diagnosis of Acute Otitis Media: a teaching and assessment model in three groups

  Mean (SD) P-Valuev Between Scores
Pre-Intervention Score Versus Retention Score Pre-Intervention Score 13.0 (2.3) P < 0.001
Retention Score 15.6 (2.5)
Gain in Score +2.6* (3.3) N/A
Post-Intervention Score VersusRetention Score Post-Intervention Score 23.0 (1.8) P < 0.001
Retention Score 15.6 (2.5)
Gain in Score −7.4** (2.7) N/A
  1. *Statistically Significant Gain in Score at P < 0.001
  2. **Statistically Significant Regression in Score at P < 0.001