from the International Society for Intelligence Research Conference in Melbourne Australia. NO EMBARGO.
General intelligence in dogs
Arguments have raged as to whether human intelligence contains a large general component, or whether that just arises from the way that IQ tests are constructed. Now Dr Rosalind Arden, Dr Mark Adams and Prof Robert Plomin have tested the intelligence of border collies on four different detour route-finding tasks and two different tests of pointing.
They say: A higher order factor accounted for 40% of the reliable variance in performance. Dogs that quickly completed the detour tasks also tended to score higher on the choice tasks and take less time to make a choice, and this could be explained by a general intelligence factor. The weaker inter-correlations among test performance implies that dog intelligence may have evolved in response to selection for specific behaviors and abilities.
So, if you consider that general intelligence account for 50% of human ability, and 40% of border collie ability they have much in common in terms of mental organisation, but dogs are more likely to have some specific abilities because they were bred up to do specific tasks by humans.
Contact: Dr Rosalind Arden Rosalind.firstname.lastname@example.org
If she is on a plane at the moment, I can provide a preliminary summary.