Table 1. Generalised linear models for testing the effect of familiarity on different qualitative measures of response.

Response variable	Explanatory variable	Estimate	Std Error Sq	T-value	p-value
Reactive distance	Intercept	2.526	1.819	1.389	0.175
	Unfamiliar	1.985	2.879	0.690	0.496
	Length	0.069	0.142	0.488	0.629
	Unfamiliar: length	−0.178	0.243	−0.737	0.467
Maximum speed	Intercept	175.7	269.9	0.651	0.519
	Familiar	−487.8	427.2	−1.140	0.263
	Length	44.14	21.16	2.086	0.045
	Familiar: length	37.91	36.06	1.051	0.301
Maximum acceleration	Intercept	−147.6	4,846	−0.003	0.997
	Familiar	2,989	7,671	0.390	0.699
	Length	6,909	3,799	1.819	0.078
	Familiar: length	−3032	6,473	−0.468	0.642
Total distance	Intercept	0.699	0.908	0.771	0.447
	Familiar	0.562	1.437	0.391	0.698
	Length	0.194	0.071	2.733	0.010
	Familiar: length	−0.055	0.121	−0.454	0.653