The overall CR of the models that will best explain WSSV infection
were comparable for all subsets. Overall CR for the entire dataset was
63%; for monoculture 73% and for polyculture 66% (Table 3). No
collinearities were observed between variables in all models in the
analysis for the entire dataset and the two subsets, monoculture and
polyculture farms. The variance loading are onto different dimension,
tolerance remains largely above 0.1 (0.57 and higher) and variance
inflation factor far below 10 (1.76 and lower), which are the frontier
values according to Menard (1995) and Myers (1990), both cited by
Field (2005). The models produced using binary logistic regresion are
valid.