Table 3 Results of the Cox regression analysis in the case of the four testing groups. Significant effects are highlighted with bold letters

Turn (detour) latency

Independent/no demo

0.596

2

0.742

Cooperative/no demo

0.535

2

0.765

Independent/dog demo

8.807

2

0.012

Cooperative/dog demo

2.066

2

0.356

Reward (detour) latency

Independent/no demo

0.558

2

0.757

Cooperative/no demo

0.520

2

0.771

Independent/dog demo

7.985

2

0.018

Cooperative/dog demo

1.635

2

0.441