Now in a thoroughly revised and expanded second edition, this comprehensive work provides the most current information about theory and research on assessment of intellectual abilities and processes. Leading test authors, theorists, and scholars review the conceptual and research underpinnings of recent editions of intelligence tests, including the WISC-IV, KABC-II, SB5, and WJ III, and offer recommendations for interpretation. Highlights include new and fully revised chapters on assessment of special populations, including culturally and linguistically diverse individuals, preschoolers, and children with learning disabilities. Other new chapters describe cutting-edge interpretive approaches (e.g., nondiscriminatory and cross-battery methods) and current theories (e.g., CHC theory, Gardner's MI theory, Sternberg's triarchic theory of successful intelligence, Luria's theory of information processing); outline ways to link assessment to interventions; and address standards-based educational reform.