Repeatability (intra-gauger agreement) –

A geometric mean of intraclass coefficients were calculated for every gauger in order to evaluate their personal performance in association with their skills and equipment quality. The calculated average measure of intraclass correlation coefficients of different gaugers ranged from R = 0.7840 to R = 0.9897 (Table 3). The non-parametric Spearman’s Rank correlation revealed a significant correlation between ICC scores and gaugers’ morphometric skills, represented by the estimated number of individuals measured in their personal career (n = 11, R = 0.70, t= 2.94, p = 0.016) and a non-significant association between the repeatability parameters and the maximum magnification of the microscope (n = 11, R = 0.56, t = 2.03, p = 0.073) applied by the gauger (Fig. 4).
Table 3. Repeatability scores (R) calculated for gaugers.