Appropriate Theories/Theoretical Perspectives: Learners working in addiction psychology should focus on theories that are nonclinical in nature. By this we mean to avoid theories related to any specific approach to treatment or treatment in general. Virtually any psychological theory that is not solely clinical and that has not been recognized as discredited may be explored. Appropriate Topic Areas: Examples of appropriate topics for learners in the PhD program in Addiction Psychology include research focused on the acquisition, nature, appearance, theory, prevention, or meaning of addictive behaviors, substance use, or related problems (such as gambling, eating, sexual behavior, spending). They may include study of the normal population and other nonclinically affected individuals relevant to these types of problems. They also may include examination of topics related to implementation science and involving evaluation of nonclinical applied psychology efforts. Inappropriate Topic Areas: Inappropriate topics include, but are not limited to, those requiring the delivery or supervision of any clinical treatment or evaluation, experimental treatments or trainings, or coachingoriented efforts related to addictive behavior and its treatment or clinical assessment. Additionally, any topics requiring doctoral level clinical, medical, and/or counseling knowledge, theory, assessment, ethics, or other skills related to the clinicallyoriented treatment of or research about addictive behavior are not appropriate. Learners also are encouraged to avoid topics that are purely epidemiological, anthropological, sociological, medical, or public healthoriented in nature.