Do anxious owners make for anxious dogs? A new study explores the owners of 1,681 dogs who evaluated their own personalities, and their dogs’ personalities, on standardized questionnaires. They found that dogs and their owners share personality traits. A highly agreeable person is twice as likely to have a dog who is highly active and excitable—and less aggressive—than someone who is less agreeable. The study also found that conscientious owners rated their dogs as more responsive to training and neurotic owners rated their dogs as more fearful. By contrast, “if someone is chill, their dog is chill," says Chopik.