KTEA-3: What parents actually need to know.
The KTEA-3 is the achievement test you will see when an evaluator picks the Kaufman family of tools instead of the Wechsler. It measures the same domains as the WIAT-4 (reading, math, writing, oral language) but adds something the WIAT-4 does not have: a Phonological Processing subtest baked right in. This guide walks through the composites, the score patterns that matter, and the one composite that changes the conversation about dyslexia.
The 30-second version.
Before you dive into the details, here is the short version of what the KTEA-3 is and how it gets used.
The Reading Composite is for academic achievement. The Sound-Symbol Composite is for dyslexia.
The single most important difference between the KTEA-3 and the WIAT-4 is one composite: Sound-Symbol. It is the reason an evaluator might pick the KTEA when reading is the question. If your child is being evaluated for dyslexia and the report does not include this composite, the evaluation has left a major piece on the table.
The Reading Composite alone is not enough.
The Reading Composite combines Letter and Word Recognition with Reading Comprehension into one number. That works for general academic achievement. But for dyslexia evaluation, the work that matters most is what the underlying Decoding Composite (Letter and Word Recognition + Nonsense Word Decoding) and the Phonological Processing subtest reveal. Many reports lead with the Reading Composite and never break this out.
Sound-Symbol changes the conversation.
The Sound-Symbol Composite combines Phonological Processing, Letter and Word Recognition, and Nonsense Word Decoding into one composite specifically built to flag dyslexia risk. A low Sound-Symbol score with intact Reading Comprehension and intact Oral Language is the on-the-record evidence that decoding is the bottleneck. This is what makes the KTEA-3 worth picking when reading is the issue.
If reading is the question, the Decoding Composite and Sound-Symbol Composite are the numbers that matter. Make sure they are in the report.
The five composites, explained.
The KTEA-3 organizes achievement into five major composites. Here is what each one measures, what your child does during the test, and what affects performance beyond raw skill.
When a child understands and uses spoken language fine but cannot decode words on the page, the KTEA-3 captures it cleanly. A solid Oral Language Composite paired with a low Sound-Symbol Composite is the on-the-record evidence that the issue is decoding, not understanding. That pattern alone is one of the clearest signatures of dyslexia an achievement test can produce.
The standard score table.
KTEA-3 standard scores use mean 100, SD 15. Same scale as the WIAT-4, WISC-V, and CELF-5. Ignore the grade equivalents printed alongside.
| Score Range | Percentile | What It Actually Means |
|---|---|---|
| 130 and above | 98th and above | Very strong. Top 2 percent of kids this age. |
| 120 to 129 | 91st to 97th | Above average. Clearly strong. |
| 110 to 119 | 75th to 90th | High average. A little above typical. |
| 90 to 109 | 25th to 74th | Average. The middle half of kids this age. |
| 80 to 89 | 9th to 24th | Low average. Below typical but not yet clinical. |
| 70 to 79 | 2nd to 8th | Borderline. Low enough to matter for SLD eligibility. |
| 69 and below | 1st and below | Extremely low. Well outside the typical range. |
What your kid’s profile shape is telling you.
The KTEA-3 is most useful when you read the shape of the profile across composites, not any single score. These are the four patterns that most often drive instruction and eligibility decisions.
The Classic Dyslexia Profile
Reading and Sound-Symbol are clearly below the other composites. Oral Language is intact or strong. Math and Written Language depend on whether reading load shows up there too. The child understands language, they just cannot decode it.
The Math-Specific Weakness
Math is significantly below Reading, Written Language, and Oral Language. Sound-Symbol is fine. This is the dyscalculia profile, though the KTEA alone does not diagnose dyscalculia.
The Writing Bottleneck
Written Language is notably below everything else. Spelling errors look phonetic but are not. Ideas come through fine in Oral Expression, reading is intact, math is fine. Writing itself is the bottleneck.
The Globally Low Profile
Every composite is below average, including Oral Language and Sound-Symbol. No real peak or valley.
What this test is, and isn’t, used for.
The KTEA-3 is a strong achievement battery, but it gets used outside its scope all the time. Knowing the line helps you push back when needed.
Legitimate uses.
- Achievement testing for Specific Learning Disability (SLD) eligibility
- Identifying academic strengths and weaknesses across reading, math, writing, and oral language
- Flagging dyslexia-relevant patterns through the Sound-Symbol Composite and Nonsense Word Decoding
- Pairing with cognitive testing (like the WISC-V) to evaluate SLD patterns
- Tracking growth over time using the alternate form (A or B) for re-test
Misuses to push back on.
- Measuring cognitive ability or IQ (that is the WISC-V or KABC-II)
- Diagnosing dyslexia on its own without considering oral language and cognitive findings
- Diagnosing ADHD (achievement is not attention)
- Determining if your child is “smart” (this measures what they have learned, not how they think)
- Parent conversations using only grade equivalents
- Universal screening (the KTEA is individually administered, not a screener)
The KTEA-3 is half the picture. Eligibility requires the achievement pattern, plus cognitive testing, plus documentation that the academic issue is not better explained by something else. If someone says your child “qualifies” or “does not qualify” based only on the KTEA-3, push for the full evaluation. The Sound-Symbol Composite is a strong dyslexia signal but it is not the diagnosis on its own.
Walk in prepared. Walk out with answers.
These questions move the conversation from “here are the achievement scores” to “here is what the scores mean for my kid.” Ask them.
Set expectations early.
- Which composites will you administer, and will the Sound-Symbol Composite be included?
- Will the Phonological Processing subtest specifically be reported as its own scaled score?
- Will Nonsense Word Decoding be broken out as its own number? It is the dyslexia canary.
- Are you using Form A or Form B, and is this a re-test from a previous evaluation?
- How will the results be paired with the cognitive testing to evaluate patterns for SLD?
Make them walk you through it.
- What is the pattern across the five composites, and what does it suggest about how my child learns?
- What did the Sound-Symbol Composite show, and what does that mean for dyslexia risk?
- How does the Decoding sub-composite (LWR + NWD) compare to Reading Comprehension?
- Are there 15-point or larger gaps between any composites? What do they mean?
- How does this profile compare to the WISC-V cognitive scores and the Oral Language results?
Stop and ask if you see any of these.
The KTEA-3 has built-in advantages over the WIAT-4 for reading evaluation, but only when the report uses them. These are the warning signs worth slowing down for.
The Sound-Symbol Composite is missing.
This composite is the main reason an evaluator picks the KTEA-3 over the WIAT-4 for a reading evaluation. If the report does not include it, you are not getting the value of the test you were given.
Nonsense Word Decoding not broken out.
This is the dyslexia canary. A child who can read familiar real words but cannot decode unfamiliar made-up words is a child who has memorized words rather than learned to decode. Always ask for this subtest score by itself.
Conclusions drawn from grade equivalents.
Like the WIAT-4, the KTEA-3 prints grade equivalents next to standard scores. They are statistically unstable and should not drive decisions. If the report or the conversation leans on them, ask for the standard scores instead.
A 15-point composite gap that is never addressed.
If one composite is significantly lower than the others, the narrative needs to explain it. The whole point of the KTEA-3 profile is pattern detection. An unaddressed gap is a hole in the evaluation.
Achievement scores interpreted without cognitive testing.
You cannot determine SLD from achievement alone. If the report draws eligibility conclusions without referencing the WISC-V or another cognitive measure, something is missing.
Recommendations not connected to the actual profile.
If the profile shows a clear dyslexia signature (low Sound-Symbol, intact Oral Language) but the recommendations are generic (“provide instruction in reading”), the evaluation is not doing its job. Specific profiles demand specific interventions.
Standard scores, not grade equivalents. Sound-Symbol over Reading Composite when reading is the question.
The KTEA-3 covers the same academic ground as the WIAT-4, but adds a phonological processing subtest and a Sound-Symbol Composite that the WIAT does not have. When reading is the concern, the Decoding Composite, Nonsense Word Decoding, and Sound-Symbol Composite are the numbers that do the most work. Pair them with Oral Language to see whether the issue is decoding or comprehension. And remember: the achievement picture only makes sense next to the cognitive picture. Walk into the meeting ready to read the pattern, and you walk out knowing what your child actually needs.
Related explainers
Tests that pair with the KTEA-3 in real evaluations.
- WISC-V — paired with the WISC-V in the standard SLD evaluation.
- WIAT-4 — the other standard academic battery; parents often want to know the difference.
- CTOPP-2 — the dyslexia screening test the KTEA-3 reading composite usually pairs with.
See every cheat sheet in the Assessments 101 hub or browse the Assessments Library.
Part of the Tests hub. For parent-friendly framing of how testing works in special education and what to push back on, see What You Need to Know About Tests.
About Decoding Mom
Decoding Mom is written by a mom of a bright kid with ADHD and mild dyslexia. After too many late-night research binges trying to make phonics fun, she started this site to translate the science of reading, IEPs, and special-ed assessments for parents figuring it out the hard way. Honest, parent-first, no fluff. More about her here →
Frequently asked questions about the KTEA-3
What is the KTEA-3?
The Kaufman Test of Educational Achievement, Third Edition. A nationally standardized academic achievement battery that assesses reading, mathematics, written language, and oral language.
What does the KTEA-3 measure?
Multiple composites including Reading Comprehension, Reading Decoding, Reading Fluency, Math Concepts and Applications, Math Computation, Written Language, Oral Language, plus a Sound-Symbol composite that overlaps with phonological processing.
How is the KTEA-3 different from the WIAT-4?
Both are individually administered achievement tests covering similar domains, and both are commonly paired with the WISC-V to identify a specific learning disability. The KTEA-3 has more subtests in some areas (such as a separate Decoding Fluency vs Word Reading Fluency) and is sometimes preferred for younger children.
Why does the KTEA-3 have a Sound-Symbol composite?
The Sound-Symbol composite overlaps with phonological processing skills assessed by the CTOPP-2. It can serve as a shorter dyslexia screen when a full CTOPP-2 is not available, but it is not a replacement for the CTOPP-2 in a full dyslexia evaluation.
What if my child’s KTEA-3 reading scores are average but the school is concerned?
Average broad scores can hide subtest weaknesses. Ask to see the subtest profile, not just the composites. A child with average Reading Comprehension but very low Phonological Processing or Decoding Fluency has a pattern that supports an SLD finding even with average composites.
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