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Table 3 Mean grades for 1st-year CU based on whether students’ secondary school highly inflated their internal grades in the year of students’ admission to medical school

From: Do students from public schools fare better in medical school than their colleagues from private schools? If so, what can we learn from this?

Year of admission to Schools that highly inflate internal grades (A) Other schools (B) Mean difference (A-B) Cohen’s d p-value
Medical school N Mean (SD) N Mean (SD)    
2009 105 12.8 (1.3) 116 13.3 (1.2) −0.5 0.40 0.002
2010 102 12.9 (1.2) 119 13.2 (1.3) −0.3 0.24 0.089
2011 90 12.7 (0.9) 118 13.0 (1.1) −0.3 0.30 0.049
2012 106 12.7 (1.2) 108 13.5 (1.5) −0.8 0.60 < 0.001
2013 104 12.8 (1.1) 98 13.3 (1.3) −0.5 0.42 0.004
2014 111 13.2 (1.2) 86 13.9 (1.3) −0.7 0.56 < 0.001
  1. SD – Standard Deviation