Normal     T     Gamma     h2 ρe Bias ASV EMP Bias ASV EMP Bias ASV EMP 0.4 0 0.0023 0.0047 0.0025 0.0178 0.0258 0.0600 -0.0184 0.0230 0.0128 0.4 0.3 0.1458 0.0061 0.0024 0.0931 0.0292 0.0496 0.1353 0.0303 0.0134 0.4 0.6 0.2892 0.0077 0.0022 0.2287 0.0365 0.0441 0.2814 0.0384 0.0152 0.4 0.9 0.4326 0.0095 0.0019 0.3906 0.0463 0.0338 0.4162 0.0469 0.0104 0.6 00.0 0.0076 0.0094 0.0360 0.0007 0.0314 0.0498 -0.0227 0.0296 0.0127 0.6 0.6 0.2876 0.0094 0.0018 0.2695 0.0466 0.0360 0.2735 0.0466 0.0121 0.6 0.9 0.4311 0.0115 0.0014 0.4513 0.0595 0.0235 0.4277 0.0576 0.0072 0.8 0 -0.0005 0.0080 0.0020 0.0172 0.0412 0.0387 -0.0061 0.0397 0.0122 0.8 0.3 0.0712 0.0088 0.0019 0.0684 0.0441 0.0354 0.0639 0.0440 0.0129 0.8 0.6 0.1430 0.0098 0.0017 0.1475 0.0491 0.0341 0.1306 0.0483 0.0104 0.8 0.9 0.2147 0.0108 0.0015 0.2044 0.0531 0.0327 0.2043 0.0534 0.0081 NOTE: h2: heritability; ρe: correlation of environmental eects; REML: Restricted maximum likelihood estimates; correlation regression: correlation regression estimates; Bias: estimate of h2-h2; ASV: Asymptotic variance of REML; EMP: Simulation variance.

Table 3: Simulation results for heritability assuming zero non-genetic correlations for relative pairs using REML: Multivariate normal, T and Gamma distribution.