Given a contemporary research question or issue in the social sciences, such as the question of whether obesity can be linked to mood and anxiety disorders, assess the key theoretical perspectives related to the problem or issue and select the perspectives that best address the problem or issue. 2 Given an intellectual, scientific research question that investigates human behavior and mental processes apply the empirical approach of the social sciences in order to define, analyze, and formulate answers that may support various solutions to the problem. 3 Given any case involving possible biological causes for someone's behavior, such as a substance abuse problem, brain injury, or unusual behavior, analyze the biological foundations of behavior and provide physiological explanations for changes in the person's behavior, emotions, perceptions, and thoughts.