TABLE 1

Observed (O), estimated (E), and predicted (P) standard errors of intraclass correlations

h2a = 0.04h2 = 0.96
sbncO[4σ(Embedded Image )d]E[4σ(Embedded Image )]P[4σ(Embedded Image )]O[4σ(Embedded Image )d]E[4σ(Embedded Image )]P[4σ(Embedded Image )]
210000.05930.05900.06160.71920.67161.0353
410000.03500.03520.03550.51690.49960.5978
810000.02320.02310.02330.36610.36090.3914
1650.32880.32690.33420.47210.46480.4835
100.16480.16360.16560.35750.35450.3686
500.04330.04320.04350.27640.27460.2860
3250.23230.23080.23320.33460.33090.3374
100.11480.11470.11540.25370.25180.2568
500.03020.03020.03030.19670.19510.1990
10050.13100.13030.13080.18910.18800.1892
100.06490.06450.06460.14330.14300.1439
500.01700.01700.01690.11110.11070.1114
  • Estimated standard errors of intraclass correlations were from the Osborne and Paterson (1952) approximation based on 105 replicated samples. Standard errors of mean estimates were <0.0002 (h2 = 0.04) and <0.002 (h2 = 0.96).

  • a Heritability (four times the intraclass correlation).

  • b Number of sires.

  • c Number of progeny per sire.

  • d Four times the empirical standard error of the estimated intraclass correlation.