Know Your Rights · IEP Evaluation

Private Evaluation vs. School Evaluation: What Parents Need to Know

The school’s evaluation is free, and it may also be limited, incomplete, or biased toward the outcome the district prefers. Understanding when to rely on the school’s assessment and when to invest in a private evaluation could change everything for your child’s IEP.

The Conflict of Interest Problem

Here’s a reality most families don’t know walking into the IEP process: the school district both funds and conducts the evaluation that determines whether your child qualifies for special education services, and then pays for those services if they do. This creates a structural conflict of interest. A district that finds more children eligible spends more money. This doesn’t mean every school evaluator is deliberately skewing results, but it does mean that the institutional incentives are not fully aligned with your child’s interests.

Private evaluations are conducted by independent clinicians, neuropsychologists, speech-language pathologists, occupational therapists, behavior analysts, who have no financial relationship with the school district and no incentive to minimize your child’s needs.

What School Evaluations Include (and Often Don’t)

A school evaluation must be sufficient to determine whether your child is eligible for special education services and, if so, to identify their educational needs. In practice, school evaluations typically include:

• Cognitive testing (IQ assessment)
• Academic achievement testing
• Behavioral rating scales (teacher and parent forms)
• Classroom observations
• Speech and language screening or assessment (if referred)

What school evaluations often don’t include, unless specifically requested or warranted:

• Comprehensive neuropsychological assessment including processing profiles
• Sensory processing evaluation by an OT
• Adaptive behavior assessment (daily living skills)
• Comprehensive autism diagnostic assessment (ADOS-2, ADI-R)
• Detailed executive function assessment
• Social-emotional/mental health evaluation

Your Right to an Independent Educational Evaluation

If you disagree with any aspect of the school’s evaluation, its findings, its completeness, or its methodology, you have the right under IDEA to request an Independent Educational Evaluation (IEE) at public expense. This means the school must either:

1. Fund an IEE conducted by an outside evaluator of your choosing (within the district’s established criteria), or
2. File for due process to defend the adequacy of their own evaluation

The IEE process has its own rules, and school districts often respond to IEE requests with resistance or delay. Read our full guide to requesting an IEE under IDEA.

When to Invest in a Private Evaluation

Consider a private evaluation when:

• The school’s evaluation came back “not eligible” and you believe they missed something
• The evaluation seems incomplete, important areas of functioning weren’t assessed
• Your child has a complex profile (possible autism, ADHD + learning disability, mental health + academics) and the school evaluated each piece in isolation without a comprehensive picture
• The evaluation findings don’t match what you observe at home and what teachers see in the classroom
• You want a second opinion before an IEP meeting where placement is being discussed

How to Use a Private Evaluation at the IEP Table

A private evaluation doesn’t automatically override the school’s assessment, but the IEP team is legally required to consider it. Here’s how to maximize its impact:

• Submit the private evaluation report to the school in writing well before the IEP meeting
• Request that the evaluator attend or submit written recommendations for the IEP
• Compare the private evaluation’s findings and recommendations directly against what the school’s evaluation found
• Bring an advocate who can interpret both reports and push back if the team dismisses the private findings

Learn more about the full IEP evaluation process and timeline.