The accuracy of drug- and explosives-sniffing dogs is affected by human handlers' beliefs, possibly in response to subtle, unintentional cues, UC Davis researchers have found.
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The study, published in the January issue of the journal Animal Cognition, found that detection-dog teams erroneously "alerted," or identified a scent, when there was no scent present more than 200 times — particularly when the handler believed that there was scent present.
via www.sfgate.com
