This course involves an examination of current issues related to the classification and diagnosis of abnormal behavior and psychological states. Dimensional, descriptive, and categorical approaches to classification are reviewed, with emphasis on the current forms of adult psychopathology found in the DSM. Topics include the symptomatology, etiology, developmental patterns, and treatment approaches to various diagnostic categories. Empirical findings, methodological concerns, and conceptual issues are discussed. Cross-listed as COUN 520.