Chapter Overview

Chapter 3 covers the issues of clinical assessment, diagnosis, and treatment. We will define assessment and then describe key issues such as reliability, validity, standardization, as well  specific methods that are used for assessment. In terms of clinical diagnosis, we will discuss the two main classification systems used around the world – the DSM-5 and ICD-10. Finally, we discuss reasons why people may seek treatment and what to expect when doing so.

Chapter Outline

• 3.1. Clinical Assessment
• 3.2. Diagnosing and Classifying Psychological Disorders
• 3.3. Treatment of Psychological Disorders – An Overview

Chapter Learning Outcomes

• Describe clinical assessment and methods used for assessment.
• Clarify how mental health professionals diagnose psychological disorders.
• Discuss reasons to seek treatment and the importance of psychotherapy.