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Independent Educational Evaluations in Lancaster, CA

Providing comprehensive execution of IEEs for families and school districts throughout Lancaster and surrounding areas.

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Serving Lancaster Students & Districts

We work collaboratively with local Local Education Agencies (LEAs) to ensure timely, compliant, and thorough assessments.

School Districts

Experienced in working with Lancaster School District and Antelope Valley Union High School District and surrounding districts.

Local Presence

Serving the Lancaster area, we provide easy scheduling for in-person observations and testing.

IEP Participation

Our evaluators attend IEP meetings (in-person or virtual) to present findings to the team.

Compliance

We strictly adhere to California Education Code and SELPA guidelines for Independent Evaluations.

Our Evaluation Services

Complete assessment coverage across all domains of suspected disability.

Psychoeducational

Cognitive, academic, and social-emotional assessments for Learning Disabilities, Autism, and ADHD.

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Speech & Language

Comprehensive SLP evaluations for articulation, language processing, and pragmatics.

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Occupational Therapy

Fine motor, sensory processing, and visual-motor integration assessments.

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Physical Therapy

Gross motor and mobility evaluations for campus access.

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Adapted PE

Assessment of gross motor skills for PE participation.

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Dyslexia Assessments

Specialized testing for reading disorders and phonological processing.

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Serving All Lancaster Areas

We travel to schools and homes throughout the greater Lancaster area.

Central Lancaster

Serving schools and families in central Lancaster.

West Lancaster

Providing assessments for students in West Lancaster area.

East Lancaster

Extending our service area to East Lancaster and surrounding communities.

Request an Evaluation in Lancaster

Unbiased, thorough, and compliant Independent Educational Evaluations.

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Lancaster IEE FAQs

Do you serve Lancaster School District and Antelope Valley Union High School District?

Yes. We provide Independent Educational Evaluations for students attending Lancaster School District and Antelope Valley Union High School District and surrounding school districts.

Where does the evaluation take place?

Evaluations can be conducted in-person at the student's school, in the home, or at a neutral location in Lancaster. We also offer secure telehealth options.

How quickly can you start an evaluation in Lancaster?

Once we receive the signed Assessment Plan (AP) and contract from the district, we can typically schedule the initial observation or testing session within 1-2 weeks.

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.

Donald Ghrist, LEP
"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

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