The latest edition of this perennial bestseller instructs and updates students and clinicians on the basic principles of psychological assessment and measurement, recent changes in assessment procedures, and the most widely used tests in counseling practice today. Dr. Danica Hays guides counselors in the appropriate selection, interpretation, and communication of assessment results. This edition covers more than 100 assessment instruments used to evaluate substance abuse and other mental health disorders, intelligence, academic aptitude and achievement, career and life planning, personal interests and values, assessment of personality, and interpersonal relationships. In addition, a new chapter on future trends in assessment discusses the changing cultural landscape, globalization, and technology. Perfect for introductory classes, this text provides students and instructors with practical tools such as bolded key terminology; chapter pretests, summaries, and review questions; self-development and reflection activities; class and field activities; diverse client case examples; practitioner perspectives illustrating assessment in action; and resources for further reading.