Predictive validity of a method for evaluating temperament in young guide and service dogs

Abstract

As part of a collaborative project involving five guide and service dog organizations in the USA (Canine Companions for Independence, Guide Dogs for the Blind, Guiding Eyes for the Blind, Leader Dogs for the Blind and The Seeing Eye), volunteer puppy raisers provided information about the behavior of the guide and service dogs in their care via a questionnaire (the Canine Behavioral Assessment and Research Questionnaire, or C-BARQ©; www.cbarq.org). The surveys were completed online when the puppies were 6 months old and again at 12 months of age. Dogs were tracked through training and those that successfully completed training and were matched with a blind/disabled handler or were selected as breeders were classified as “successful” while dogs rejected from the program due to behavioral issues were classified as “released” (dogs rejected for medical reasons were excluded from analysis). A total of 11,997 C-BARQ evaluations for 7696 dogs were analyzed. Generalized linear modeling for each of the five schools revealed that dogs that successfully completed training scored more favorably on 27 out of 36 C-BARQ traits at both 6 and 12 months of age compared to those that were released from the programs. The most predictive trait at both age levels was ‘pulls excessively hard on leash,’ for which each unit increase in score was associated with a 1.4 increase in the odds of being released from the program. The ability of the C-BARQ to discriminate between dogs that were later successful or released differed across organizations (P=0.001 and P<0.0001 for 6- and 12-month surveys, respectively), most likely due to differences in the procedures used when making decisions about whether or not to release dogs. These findings provide convincing evidence that the C-BARQ is able to discriminate between dogs that are behaviorally suited for guide or service work and those that are not and may provide trainers with useful information about potential training or breeding candidates as early as 6 months of age.