Arizona Dyslexia Screening Requirements and Your Child's School Rights

You know something is wrong. Your child is in second grade, reading far below their peers, and the school keeps assuring you that the student "just needs more time." You have heard the word dyslexia from the child's pediatrician but the school uses different language — or no language at all. Arizona has specific dyslexia screening requirements, and your child's school has legal obligations that go significantly beyond general reassurance.

What Arizona Requires for Dyslexia Screening

Arizona law requires public schools to screen students for characteristics of dyslexia. The Arizona Dyslexia Handbook, developed by the ADE in alignment with legislative requirements, provides guidance to districts on implementing universal screening. Under A.R.S. § 15-704, students are to be screened for reading difficulties, and districts that identify students with characteristics consistent with dyslexia must provide appropriate intervention.

The screening requirements apply to students in kindergarten through third grade, though districts may extend screening to older students. Screening is distinct from a full evaluation — it is a brief, standardized tool used to identify students who may be at risk for reading difficulties, including dyslexia.

Here is the critical distinction families often miss: a positive screening result is not a diagnosis, and a negative screening result does not mean your child does not have dyslexia. Screening tools have both false positives and false negatives. If your child's teacher reports no concerns after a screening but your child continues to struggle significantly with reading, phonological awareness, spelling, or written expression, a negative screen does not resolve the question.

The Difference Between a Dyslexia Screening and a Special Education Evaluation

A dyslexia screening tells you whether a child shows characteristics consistent with dyslexia at the screening level. A special education evaluation tells you whether the child has a disability — specifically, a Specific Learning Disability in reading — that adversely affects educational performance and requires specially designed instruction.

These are not the same thing, and they trigger different legal obligations.

Arizona permits LEAs to use multiple methodological approaches to identify a Specific Learning Disability (SLD): the traditional severe discrepancy model (comparing IQ to academic achievement), Response to Intervention (RTI) data, or a Patterns of Strengths and Weaknesses (PSW) approach. Regardless of which methodology is used, the evaluation must be completed within 60 days of written parental consent, conducted by a qualified multidisciplinary team, and address whether the learning difficulties are attributable to dyslexia (phonological processing deficits, difficulties with decoding, reading fluency, and/or spelling) or another cause.

One important requirement unique to Arizona's SLD determination process: every member of the multidisciplinary evaluation team must provide written certification indicating whether the evaluation report reflects their individual conclusion. If any team member disagrees with the findings, they are required to submit a separate written statement. This requirement protects parents from evaluations that obscure disagreement among professionals about what the data shows.

What to Do When the School Relies Solely on RTI Data to Delay Evaluation

Response to Intervention (RTI) is a tiered support system designed to identify students with learning difficulties and provide increasingly intensive instruction. It is also, in practice, frequently misused to delay special education evaluations for students suspected of having dyslexia.

Arizona's RTI framework does not permit a district to use the RTI process to delay or deny an evaluation indefinitely. If you have formally requested a special education evaluation in writing, the 60-day evaluation clock begins when the school receives written parental consent to evaluate — not when the RTI process completes. The school cannot respond to a written evaluation request by saying the student needs to complete another year of intervention first.

If your child has been in RTI tiers for more than two semesters without documented progress — or if the child is making progress in the intervention but only while receiving the intervention and regressing when it is removed — these patterns support the argument that the student requires specially designed instruction under an IEP, not just a general intervention program.

To trigger the evaluation process: write a formal letter to the principal and special education director requesting a full evaluation for Specific Learning Disability. Reference IDEA and A.R.S. § 15-761. Include the specific areas of concern — reading fluency, phonological awareness, decoding, spelling, written expression. Send it via email with a delivery-confirmation request. Keep a copy. From the date the school acknowledges your request and you provide consent to evaluate, the 60-day clock runs.

What an IEP Can Provide That a 504 Plan Cannot for Dyslexia

Many Arizona schools respond to identified reading difficulties by offering a 504 plan rather than an IEP. For a student with dyslexia whose disability adversely affects educational performance, this may not be sufficient.

A 504 plan provides accommodations — adjustments to how the student accesses the curriculum (extra time, text-to-speech, reduced written output) without changing the instructional approach. A 504 plan does not include specially designed instruction in structured literacy, multisensory reading approaches, or explicit phonics intervention. For a student with moderate to severe dyslexia, accommodations alone are unlikely to close the reading gap.

An IEP can include both accommodations and specially designed instruction — meaning the school is legally required to provide explicit, evidence-based reading instruction delivered by a qualified special education teacher, with measurable goals and progress monitoring. The distinction between "we'll give your child extra time on tests" and "we will deliver Orton-Gillingham or a comparable structured literacy program three times per week" is significant.

If the school offers a 504 plan for a student you believe has a Specific Learning Disability, ask the evaluation team to explain specifically why the student does not qualify for an IEP. Request a Prior Written Notice documenting the decision, the data used to make it, and the other options considered. This documentation creates a record you can use to challenge the decision through a State Complaint or by requesting an Independent Educational Evaluation.

The Arizona IEP and 504 Advocacy Playbook includes specific guidance on navigating the IEP vs. 504 decision for students with learning disabilities, along with templates for requesting evaluations and challenging denials — tools that are particularly relevant for Arizona families fighting for appropriate reading instruction for their children.

Arizona's Structured Literacy Requirement

Arizona has made explicit statutory commitments to evidence-based reading instruction grounded in the science of reading. Arizona law requires that reading instruction in public schools be grounded in structured literacy approaches that address phonological awareness, phonics, fluency, vocabulary, and comprehension.

For students with dyslexia receiving an IEP, this means the specially designed instruction should align with structured literacy principles. When evaluating whether the school's proposed IEP goals and services are appropriate for a student with dyslexia, ask the team specifically: What structured literacy intervention will the student receive? Who is qualified to deliver it? How often will it be provided, and for how long? How will progress be measured — and what is the benchmark that would indicate whether the approach needs to change?

Measurable goals and a clear intervention approach are not optional features of a strong IEP for dyslexia. They are the minimum required for the IEP to be reasonably calculated to enable the student to make meaningful educational progress.

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