Explosive- and drug-sniffing dogs' performance is affected by their handlers' beliefs UC Davis study finds detection dogs may exhibit the "Clever Hans" effect

Explosive- and drug-sniffing dogs' performance is affected by their handlers' beliefs UC Davis study finds detection dogs may exhibit the "Clever Hans" effect http://www.ucdmc.ucdavis.edu/welcome/features/2010-2011/02/20110223_drug_dogs.html http://www.ucdmc.ucdavis.edu/welcome/features/2010-2011/02/2...