This textbook provides a unique and comprehensive overview of the many dimensions along which human beings may differ--biological, cognitive, social, performance. Intended for upper-level undergraduates in a wide variety of course settings in psychology.

Contents: Foreword. Preface. Origins and Developments. Measurement and Research Methods. Biological Foundations. Sociocultural Foundations. Physical Appearance, Performance, and Health. Theories, Concepts, and Correlates of Cognitive Abilities. Exceptional and Special Cognitive Abilities. Personality Theories, Concepts, and Correlates. Personality Problems and Disorders. Differences Across the Life Span.