The April 24, 1997, issue of “UC-Davis Lifestyle Newstips” reported that a pro fessor of veterinary medicine was conducting a study to see if a drug called clomipramine, an anti anxiety medication used for humans, could reduce “ canine aggression toward family members.” The newsletter said, “Dogs demonstrating this type of aggression are needed to participate in the study. . . . Half of the participating dogs will receive clomipramine, while the others will be given a placebo.” A phone number was given for dog owners to call to volunteer their dogs for the study. To what group could the results of this study be applied? Explain.