Psychological Testing and Assessment provides students with a comprehensive introduction to the theory, research, and best practice in the field of psychological testing and assessment. It provides a thorough grounding in the basic psychometric theory underlying contemporary test development and highlights a number of specialist fields of psychology in which psychological testing and assessment is used extensively. The second edition has been updated to incorporate the latest theory and research, and now has expanded coverage of scoring, item response theory and factor analysis. It includes new chapters on 'Intelligence' and 'Personality and Individual Difference', and new pedagogical features-learning objectives, key terms and practitioner profiles- to enhance student learning.