Need to compare the new exam scores with the old exam scores?
Refer to this chart for the NAC examination:
1 Based on candidates in March 2019
2 Based on candidates in March 2013
- New exam score of 475 = three standard deviations above the mean AND SIMILAR PERFORMANCE to an old exam score of 94
- New exam score of 450 = two standard deviations above the mean AND SIMILAR PERFORMANCE to an old exam score of 86
- New exam score of 425 = one standard deviation above the mean AND SIMILAR PERFORMANCE to an old exam score of 78
- New exam score of 400 = mean AND SIMILAR PERFORMANCE to an old exam score of 70
- New exam score of 375 = one SD below the mean AND SIMILAR PERFORMANCE to an old exam score of 62
- New exam score of 350 = two SDs below the mean AND SIMILAR PERFORMANCE to an old exam score of 54
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