Thus, a dog who showed ‘bite’ and ‘wag tail’ could be classified under both aggressive and friendly traits. Consequently, a dog could be categorized under any one or more than one trait. Dogs who did not show any of the grouping behaviors were categorized as having none of these traits. Behaviors with zero prevalence were excluded from grouping. ‘Approach’ and ‘sniff’ were excluded due to their very high prevalence as the design of the assessment resulted in most dogs demonstrating the behaviors ‘approach’ and ‘sniff’.The consistency of behavior traits was analyzed between the two dog conditions, using the same indices as described above.