Genetic heteroscedastic models for ordinal traits: application to sheep litter size

Table 3 Values obtained from likelihood-ratio, BIC tests, B criteria, and mean squared error (MSE) between observed and fitted values in the different models

Models/tests	Likelihood-ratio (LRT)	BIC test	B	MSE of mean	MSE of variance
TM	TM versus HTM': ≫11 (Reject H0 P value <0.001) TM versus ITM: ≫16 (Reject H0 P value <0.001)	54,005	0.013	0.07	0.13
HTM’		49,517	0.51	0.07	0.10
ITM		50,663	0.42	0.07	0.10

TM threshold model, HTM’ homothetic threshold model, ITM independent threshold model, B B criteria

ISSN: 1297-9686