The cross-battery assessment approach is an efficient assessment method, solidly grounded in psychometric theory and research, of integrating score data across several test batteries.  Essentials of Cross-Battery Assessment, Third Edition includes coverage of the most frequently administered cognitive, achievement, and neuropsychological test batteries, and instructions on how to incorporate them into a comprehensive cross-battery assessment.  The book is packaged with an accompanying CD-ROM with supplemental information and worksheets for facilitating a cross-battery assessment.