About Us

Frustrated with your IEP? You’re not alone—and you’re not out of options.

Welcome to Cognitive Diagnostic Associates

At Cognitive Diagnostic Associates (CDA), we provide unbiased, comprehensive evaluations that support clarity, collaboration, and appropriate educational planning.

We are the nation’s largest team of credentialed experts specializing in Independent Educational Evaluations (IEEs). Our multidisciplinary team includes Licensed Educational Psychologists, Speech-Language Pathologists, Occupational Therapists, Physical Therapists, Adapted PE Specialists, Registered Nurses, Optometrist and more—working together to ensure accurate, data-driven outcomes.

What makes CDA different?

We conduct independent evaluations designed to inform based on clinical expertise and objective data.

We offer multidisciplinary insight across educational and medical models to support a full understanding of the individual’s strengths and needs.

We are widely trusted by families, school districts, attorneys, pediatricians, and regional centers for our neutral, high-quality work.

We provide thorough assessments with timely delivery, designed to stand up in IEP meetings, mediation, and due process—when required.

Who we serve:

Parents seeking clarity or a second opinion about their child’s learning profile

School districts seeking outside evaluation from credentialed specialists

Advocates, attorneys, and pediatric teams needing expert documentation

Regional centers requesting independent medical model assessments

Why choose us:

Largest team of IEE providers in the country
Deep experience with IDEA, Ed Code, and legally defensible evaluations
Team-based collaboration across specialties
Clinically grounded, unbiased reporting
Available across California and Texas

Clarity begins with objectivity.

We understand the stakes. Whether you’re a family requesting an IEE, a school district seeking neutral expertise, or a professional looking to collaborate—you can trust CDA to deliver clear, ethical, and evidence-based evaluations.