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Figure. Map of Flanders with level of caries experience and over- and underscoring of dental examiners. Caries experience was split into 3 categories according to quartiles of the mean dmft scores obtained per school and coded as 0 (minimum to Q₁), 1 (Q₁ to Q₃), or 2 (above Q₃). The over- and underscoring of the examiner is indicated with the symbols "–", "*", and "+". The symbol "–" signifies that the dental examiner scoring the respective school underscored 5% to 15% compared with the benchmark examiner in the calibration exercises. The symbol "*" signifies between 5% under- and 5% overscoring, and the symbol "+" signifies at least 5% overscoring (up to 18%).

J DENT RES, Vol. 83, No. 12, 951-955 (2004)
DOI: 10.1177/154405910408301212

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