This book summarizes the state of the science of assessment paradigms, instruments, and methods. With an emphasis on practical clinical considerations, chapters also delve into issues related to test development, psychometrics, and bias. Conveniently designed for reference or text use, this vast knowledge base has been synthesized into two volumes that may be purchased separately or together. Intelligence, Aptitude, and Achievement surveys assessment of intelligence, learning styles, and academic achievement; covers historical issues and psychometric methods; and addresses diversity issues, ethical concerns, and special topics in mental testing. Personality, Behavior, and Context reviews the use of projective methods, interviewing and observation, and objective methods of assessing personality and behavior; discusses the assessment of specific syndromes and symptoms; and presents tools for assessing adaptive skills and the family context.