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.