Original sentence: In the words of one researcher, "Identifying testosterone with aggression is an idea whose time has come and gone" (Dabbs, 1998)
Edited sentence: " Josephs asked."I've never seen as powerful a predictive variable."The answer is your level of testosterone when you arrived at the competition."What predicts how you're going to treat your dog, whether you're going to beat up your dog or be nice."What we found was, this measure of testosterone was not only predictive but powerfully predictive," said Robert Josephs, an associate professor of psychology at UT.As for the winners, the researchers found no changes in the dog or in the men's behavior regardless of the testosterone measurement.By contrast, men who had lower testosterone levels responded to their dogs' lossed by petting and hugging their dogs.He gave love to the dog, and the dog responded by relaxing.In October, 2006, Josephs and his UT research team released findings from a study examining hormonal interactions in two species: humans and dogs.In the words of another researcher, "Identifying testosterone with aggression is an idea whose time has come and gone" (Dabbs, 1998).It shocked us.The dogs responded with a rise in the stress hormone cortisol.The findings were so remarkable among losers of the competition that the researchers were able to account for most of the changes in the dog's stress levels by looking at the men's testosterone levels before the contest.The punishments included yelling at and shoving the dog.The researchers surmised that the winning humans did not have their status or dominance threatened, but the losers apparently did, causing them to take it out on their dogs.The results were remarkable, in that there was a pronounced relationship between increased testosterone levels in male dog handlers and aggressive behavior toward their dogs if the dogs didn't do well enough in competition, as well as corespondingly elevated cortisol (stress hormone) levels in the dogs of high-testosterone handlers, who were more likely to punish their pets.The study centered around a San Antonio dog agility competition, in which measurements of the male handlers' testosterone levels as well as their dogs' cortisol levels were taken  before, during, and after competition.This nice, sweet, low-testosterone guy, despite defeat, not only didn't take it out on the dog but also made the dog feel better