This PowerPoint presentation summarizes key points from Chapter 2 on diagnosis and assessment in abnormal psychology. It covers the purpose of assessment for description and prediction. Diagnosis involves classifying problems into recognized categories and the criticisms of this approach. The DSM-IV system and its axes are outlined. Issues around the reliability and validity of assessments are discussed. Common assessment methods like interviews, psychological tests, observation and laboratory tests are also summarized. The presentation concludes by recapping the main points covered in the chapter.