• Use of the CAS2 (English and Spanish), the CAS2 Brief, and the CAS2: Rating Scale
  • Practical advice on disability determination using CAS2
  • Case presentations on the use of CAS2 with diverse students
  • Emphasis on practical ways to link results to intervention
  • Nondiscriminatory Assessment with the CAS2


Written by Dr. Jack A. Naglieri and Dr. Tulio M. Otero, this edition of Essentials of CAS2 Assessment discusses the latest research and thinking on PASS theory and includes case studies demonstrating CAS2's uses with various diagnostic groups and its integration with other instruments. 

Essentials of CAS2 Assessment  helps professionals ensure that the CAS2 is administered and analyzed accurately so that the results can be applied for the greatest benefit of the child. 

Want updates and free NNAT resources?

At the 2015 National Association for Gifted Children Conference, it was announced that the next generation of the Naglieri Nonverbal Ability Test (NNAT), the widely used measure to identify gifted and talented K-4 students would be released. The NNAT3 features new content, updated normative data, and a new and user-friendly online interface that is optimized for administering the assessment with a tablet.

Used by gifted and talented educators, testing coordinators, special education teachers, school psychologists and bilingual educators, the NNAT is a nationally normed, reliable nonverbal test, that provided a consistent way to screen all students without language or culture being a barrier. This provides a nonverbal, culturally neutral assessment of general ability that is ideal for use with diverse student populations.​


To purchase

Essentials of CAS2 Assessment please visit 

Jack A. Naglieri, PhD. is a Research Professor at the University of Virginia, Senior Research Scientist at the Devereux Center for Resilient Children, and Emeritus Professor of Psychology at George Mason University. With J.P. Das, he is well known for the PASS theory of intelligence and its application using the Cognitive Assessment System and Cognitive Assessment System-Second Edition.

This site was created to provide tools and resources for both psychologists and educators alike. 

Subscribe for latest news and updates 


Want a sneak peak of Essentials of CAS2 Assessment ? Click on the links below to get a better understanding of this CAS2 companion resource.


Assessment tools for psychologists and educators