Table 4. BIC support for each hypothesis explaining variation in Brucella RT-PCR positivity.

Hypothesis	BIC	ΔBIC
M7	300.6	0.0
M9	306.4	5.8
M8	306.6	6.0
M10	324.6	24.0
M1	339.5	38.9
M12	344.6	44.0
M11	350.6	50.0
M5	351.8	51.2
M2	353.1	52.5
M6	356.2	55.6
M3	358.7	58.2
M4	372.3	71.8