Who can request an Independent Educational Evaluation (IEE)?

Parents or guardians can request an IEE from their school district if they disagree with the district's assessment of their child.

How long does the evaluation process take?

Once an agreement is in place, we typically complete the evaluation and deliver a comprehensive report within 30 days.

Do school districts accept your reports?

Yes. Our reports are conducted by licensed professionals and meet all state and federal standards for Independent Educational Evaluations.

Independent Educational Evaluations You Can Trust

When you need clarity about a student's learning needs, Comprehensive Assessment Services (CAS) delivers thorough, evidence-based Independent Educational Evaluations (IEEs). We serve parents seeking second opinions and school districts requiring objective assessments—providing psychoeducational, speech/language, occupational therapy, physical therapy, Adaptive PE, and assistive technology evaluations throughout California.

Request an Evaluation Call: (661) 743-9600

Why Choose CAS for Your Independent Educational Evaluation?

Whether you're a parent exercising your right to an IEE or a district seeking qualified evaluators, CAS provides comprehensive, legally compliant assessments across all special education domains—delivered with professionalism, compassion, and strict adherence to state and federal guidelines.

Credentialed Specialists

Every CAS evaluation is conducted by state-licensed professionals—including Licensed Educational Psychologists (LEP), Speech-Language Pathologists (SLP), Occupational Therapists (OT), Physical Therapists (PT), and Adaptive PE specialists—ensuring legally defensible, clinically sound assessments.

Truly Independent Assessments

As independent evaluators with no institutional conflicts of interest, we provide objective, data-driven findings focused solely on accurately identifying each student's strengths, challenges, and educational needs—not budget constraints or administrative pressures.

Efficient 30-Day Completion

We respect IEP timelines and family urgency. From initial testing to final report delivery, CAS completes comprehensive evaluations within 30 days—without compromising thoroughness or quality.

California-Wide Availability

From Los Angeles to Sacramento, San Diego to the Bay Area—CAS serves all California counties with flexible in-person and telehealth evaluation options, ensuring access regardless of location.

Meet the Director

Founded by Donald Ghrist, LEP, Comprehensive Assessment Services was established to provide families and school districts with truly independent, high-quality educational evaluations—ensuring every student's needs are accurately identified and appropriately addressed.

"Every child deserves an accurate, unbiased assessment. Our mission is to provide families and districts with the clarity needed to make informed educational decisions—grounded in evidence, delivered with integrity."

Donald Ghrist, Licensed Educational Psychologist (#2703), brings over 25 years of experience conducting psychoeducational evaluations for students with diverse learning needs. He leads a multidisciplinary team of credentialed specialists committed to delivering legally compliant, clinically sound, and compassionate Independent Educational Evaluations.

✔ Licensed Educational Psychologist (LEP #2703)

✔ 25+ Years Conducting Special Education Assessments

✔ Expertise in IEE, IDEA Compliance, and IEP Development

Call Center: (661) 743-9600

The IEE Process

From initial referral to final report, CAS follows a clear, efficient process designed to minimize stress and maximize clarity for families and districts.

Request
Referral

Parents request an IEE from their district, or districts contract directly with CAS. We streamline all consent forms, records requests, and administrative requirements to begin assessment promptly.

Evaluation
Testing

Our credentialed specialists conduct standardized testing, classroom observations, parent/teacher interviews, and records review—gathering comprehensive data across all relevant domains to ensure accurate identification of strengths and needs.

Delivery
Report

Within 30 days, we deliver a comprehensive written report with test results, clinical observations, diagnostic impressions, and specific recommendations for IEP goals, services, accommodations, and modifications—ready for IEP team consideration.

Start the Process

Serving All of California

CAS provides Independent Educational Evaluations to families and school districts in all 58 California counties—from urban centers to rural communities, with flexible in-person and telehealth options.

Service Regions

Los Angeles County
San Diego County
Orange County
Riverside County
San Bernardino
Ventura County
Bay Area
Sacramento
Kern County
Central Valley

Virtual and In-Person options available.
Contact us to confirm availability in your district.

Check Availability

Common Questions (FAQ)

Answers to common questions about Independent Educational Evaluations, parent rights under IDEA, and the CAS assessment process.

Who has the right to request an IEE?

Under IDEA (Individuals with Disabilities Education Act), parents have the right to request an Independent Educational Evaluation at public expense if they disagree with the school district's evaluation. The district must either fund the IEE or initiate a due process hearing to defend their assessment.

What assessment areas does CAS cover?

CAS provides Independent Educational Evaluations in all special education domains: Psychoeducational (cognitive, academic, social-emotional), Speech & Language Pathology, Occupational Therapy, Physical Therapy, Adaptive Physical Education, and Assistive Technology—each conducted by appropriately licensed specialists.

What is the timeline for completing an IEE?

From signed consent to final report delivery, CAS completes comprehensive evaluations within 30 days. This includes all testing sessions, observations, scoring, analysis, and report writing—ensuring timely results for IEP meetings and educational planning.

Will the evaluator attend the IEP meeting?

Yes. CAS evaluators are available to attend IEP meetings (in-person or virtually) to present findings, answer questions, clarify recommendations, and collaborate with the IEP team. This ensures our assessment results are fully understood and appropriately integrated into the student's educational program.

Does CAS meet district IEE criteria?

Yes. CAS evaluators hold all required state licenses and credentials, use current standardized assessment instruments, follow professional ethical guidelines, and produce reports that meet both state and federal special education requirements. We work with districts throughout California and are familiar with varying local IEE policies.

Are telehealth/virtual assessments available?

Yes. CAS offers both in-person and telehealth evaluation options using validated digital assessment tools. Virtual assessments are particularly useful for students in remote areas, those with scheduling constraints, or when in-person testing presents barriers—while maintaining the same rigorous standards as traditional evaluations.