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Table 4 Cross tabulation between two examiners

From: An office-based fix-and-follow grading system assessing visual function in preverbal children

  Observer1 Total
2 3 4 5 6 7
Observer2
2 1 0 0 0 0 0 1
3 0 2 0 0 0 0 2
4 0 0 2 0 0 0 2
5 0 0 1 0 0 0 1
6 0 0 0 4 6 0 10
7 0 0 0 0 1 4 5
Total 1 2 3 4 7 4 21