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Essentials of Cross-Battery Assessment and X-BASS
Brief Description
The most empirically grounded and practice-transforming edition of Cross-Battery Assessment to date The Fourth Edition of Essentials of Cross-Battery Assessment and X-BASS delivers a comprehensive scientific update to the XBA framework and its application to SLD identification and nondiscriminatory assessment. This edition incorporates a large-scale meta-analytic...
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Essentials of Cross-Battery Assessment and X-BASS
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Description
The most empirically grounded and practice-transforming edition of Cross-Battery Assessment to date
The Fourth Edition of Essentials of Cross-Battery Assessment and X-BASS delivers a comprehensive scientific update to the XBA framework and its application to SLD identification and nondiscriminatory assessment. This edition incorporates a large-scale meta-analytic database used to program X-BASS 3.0—spanning hundreds of correlation matrices, thousands of subtest-level coefficients, and data from more than 200,000 examinees—to provide unprecedented precision in composite estimation, score-cohesion evaluation, and cross-battery interpretive accuracy. Combined with updated CHC classifications and a rigorous re-evaluation of over 1,000 subtests across major cognitive, achievement, language, and neuropsychological batteries, this edition offers the most transparent and defensible cross-battery interpretive system to date.
Building on advances in cognitive theory and psychometric analyses, this edition integrates the expanded capabilities of X-BASS 3.0, including updated composite logic, refined score-cohesion rules, and enhanced decision support for evaluating cultural and linguistic influences, domain-specific cognitive strengths and weaknesses, and unexpected underachievement. New case studies illustrate how XBA and X-BASS work together to support accurate, process-focused SLD identification across reading, writing, and math, with step-by-step demonstrations of planning batteries, integrating data, and making defensible interpretations.
New to the Fourth Edition
- Fully updated CHC classifications for all tests and subtests in X-BASS
- Revised interpretive frameworks that strengthen diagnostic precision in SLD identification
- Expanded X-BASS 3.0 workflows guiding cross-battery assessment, interpretation of cultural and linguistic influences, and estimates of decision accuracy
- New case studies demonstrating real-world application of XBA and X-BASS
- Comprehensive technical appendices documenting the psychometric foundations of XBA, including cross-source comparisons and validation evidence
- A fully articulated SLD workflow guiding practitioners from PSW interpretation through ecological validity, exclusionary factors, and converging data sources
- Practitioner-friendly tables and rapid-reference tools supporting everyday decisions
- Enhanced guidance for nondiscriminatory assessment and culturally responsive practices
- Guidance on linking diagnostic findings to evidence-based interventions
School psychologists, clinical psychologists, neuropsychologists, and graduate students in assessment courses will find this Fourth Edition an authoritative resource. By connecting theory directly to practice through X-BASS integration, the book supports accurate, defensible cognitive ability evaluations across diverse populations.
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Book Details
INFORMATION
ISBN: 9781394230822
Publisher: John Wiley & Sons Inc
Format: Paperback / softback
Date Published: 18 August 2026
Country: United States
Imprint: John Wiley & Sons Inc
Edition: 4th edition
Audience: Tertiary education, Professional and scholarly
DIMENSIONS
Weight: 0g
Pages: 480
About the Author
DAWN P. FLANAGAN is a faculty member in the Department of Psychology at St. John’s University in Queens, New York, where she conducts research and training in psychoeducational assessment, cognitive theories, ability-achievement relations, and SLD identification. Her work focuses on advancing cross-battery and SLD identification methodology. She is a co-founder of Comprehensive Assessment for Intervention (CAIpsychs.com).
SAMUEL O. ORTIZ is a faculty member in the Department of Psychology at St. John’s University in Queens, New York, where he specializes in psychological assessment and nondiscriminatory evaluation. His research addresses culturally and linguistically responsive testing practices for diverse populations in school and clinical contexts.
VINCENT C. ALFONSO is Dean of the College for Education and Engaged Learning at Montclair State University. He continues to publish and present on several topics, including specific learning disabilities, early childhood assessment, and psychometric matters in testing and evaluation.
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