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. Author manuscript; available in PMC: 2018 Jan 1.
Published in final edited form as: Optom Vis Sci. 2017 Jan;94(1):89–95. doi: 10.1097/OPX.0000000000000938

Table 3.

Smallest real differences in different King Devick Test formats by grade

All Four Administrations First Two Only Best First Pair/Best Second Pair
Grade Level
9th and below 10.2 10.9 10.4
10th and above 6.5 6.16 5.4
Total 8.9 8.9 7.2

Time in seconds