[Solved] Highly compensated executives sometimes prefer fringe benefits such as club memberships, company cars, and more vacation time, as opposed to higher salaries because most often these benefits are not taxable income. Krafft-Ebing: refers to Richard von Krafft-Ebing, a 19th-century psychiatrist and author known for his research in human sexuality. Human Sexuality: An area of study and aspect of human life that encompasses sex, gender identities and roles, sexual orientation, eroticism, pleasure, intimacy, and reproduction. Clinical Research Method: A systematic approach used in medical and psychological research that involves the collection and analysis of data to study diseases, treatments, and health outcomes. Advantages: The benefits or favorable factors that contribute to success or achieving a goal.