Degree of willingness to work with a human. High correlation between ability to retrieve and successful guide dogs, obedience dogs, field trial dogs. Chases object, picks up object and runs away. Chases object, stands over object, does not return. Chases object and returns with object to testor.
Chases object and returns without object to testor.
Starts to chase object, loses interest. Does not chase object. Stop as soon as puppy pulls away or shows discomfort. Degree of sensitivity to touch. 8 - 10 seconds before response.