Welcome to JackNaglieri.com


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

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.

What's New?

Today's Handout


Download today's handout from recent presentations.

PASS Case Studies


Case studies that illustrate ways to identify different processing disorders and interventions that can make a difference.

10-Minute Solutions


Short published papers that describe applications of PASS theory to identify disabilities such as Dyslexia.

CAS2 Speed/Fluency Scale


New FREE Speed/Fluency Scale for the CAS2.

Article Library


A comprehensive collection of publications written by Dr. Jack A. Naglieri and other renowned authors.



Video library of interviews and webinars on various topics such as Executive Function and Autism.



  • 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. 
  •  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 a sneak peak of Essentials of CAS2 Assessment ? 

Click on the links below to get a better understanding of this CAS2 companion resource.


NNAT-Individual, Naglieri Nonverbal Ability Test

Individually assess general nonverbal ability in children.

Use the Naglieri Nonverbal Ability Test - Individual (NNAT-I) to assess general ability in children and adolescents.  With quick and easy administration, it measures ability using diagrams and in a way that does not require verbal skills.  Due to the simplicity of directions and the minimal use of language required to solve the items, the NNAT-I requires minimal motor requirements and is ideal for use with examinees from culturally and linguistically diverse backgrounds, the deaf and hard of hearing, and those with low or high ability.

  • NNAT-I is especially appropriate to use for identification of gifted students, especially those from diverse backgrounds.
  • Uses progressive matrices, which are fair for all examinees, those with hearing impairments, and those with impaired color vision.
  • Ideal for children who do not speak English as their first language-requires no reading, writing, or speaking (examinees just point to the answer they believe is correct).


Upcoming Workshops & presentations

August 8-11, 2019

APA 2019

1:00 pm - 4:50 pm

Chicago, IL Hyatt Regency McCormick Place Hotel

+ Event Details

August 8-11, 2019

APA 2019

The APA Annual Convention is the world’s largest gathering of psychologists, psychology students, and other mental and behavioral health professionals. 

Workshop #150: Intellectual Assessment as a Social Justice Issue: Theoretical Considerations and Practical Solutions

1:00 pm - 4:50 pm

Chicago, IL Hyatt Regency McCormick Place Hotel

November 7-10, 2019

NAGC 66th Annual Convention

All day

Albuquerque, NM

+ Event Details

November 7-10, 2019

NAGC 66th Annual Convention

NAGC  strives to empower parents, teachers, and advocates to implement effective practices for all gifted & talented children. Registration  Jan 31, 2019- Sep 14, 2019.

All day

Albuquerque, NM

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Great Falls, Virginia, United States