- The IA is the Iowa Assessments, published by Riverside Insights and authored by Iowa Testing Programs at the University of Iowa.
- There are 14 levels (5 through 17/18) and three batteries: Complete, Core, and Survey.
- The IA has no pass or fail - it reports norm-referenced scores like Percentile Rank and Grade Equivalent.
- Homeschool families typically test through Seton Testing (about $45 online) or BJU Press (roughly $43-$52).
What Is the IA?
The IA - Iowa Assessments - is a group-administered, norm-referenced achievement battery published and scored by Riverside Insights and authored by Iowa Testing Programs at the University of Iowa. It replaced the older Iowa Tests of Basic Skills (ITBS) and Iowa Tests of Educational Development (ITED) in the 2011-2012 school year, consolidating decades of Iowa testing history into a single K-12 battery. If you've landed here searching "what is a IA," you're almost certainly looking at a school, district, or homeschool testing requirement rather than a professional licensing exam - the IA is an academic achievement test, not a certification you study for once and carry into a career.
That distinction matters because a lot of generic exam-prep advice online doesn't apply here. There's no employer sponsoring the exam, no continuing-education renewal cycle, and no single "passing score" the way there is with a licensure exam. For the specifics on how scoring works, see our companion piece on the IA Passing Score 2026 guide, and for a broader orientation to the acronym itself, check IA Meaning and What Does IA Stand For?.
How the IA Is Structured: Levels, Batteries, and Forms
The IA spans fourteen levels, from Level 5 (administered midyear in kindergarten) through Level 17/18 (grades 11-12). Level 9 aligns to grade 3, and Level 14 aligns to grade 8, with the remaining levels filling in the grades between. Current forms in circulation are E, F, and G. Form G is notable because it introduces technology-enhanced items, but those items are only available in the online delivery mode, and Form G is not offered at Levels 15-17/18.
Because alternate forms exist, students can retest annually without repeating identical items - a detail worth knowing if a school or program requires yearly testing. Delivery mode matters too: a student who starts on paper must finish on paper, and a student who starts online through Riverside DataManager must finish online. There's no mixing mid-test.
The Three Batteries
- Complete Battery - includes every subtest, including Science and Social Studies.
- Core Battery - the Complete Battery minus Science and Social Studies.
- Survey Battery - a shortened version covering only Reading, Written Expression, and Mathematics, available at Levels 7-14 only, intended for screening rather than comprehensive evaluation.
| Battery | Subtests Covered | Best Use Case | Approx. Testing Time (Levels 9-14) |
|---|---|---|---|
| Complete | All 13 domain areas, including Science and Social Studies | Full academic profile, gifted screening | 4 hrs 55 min (Form E/F) / 5 hrs 5 min (Form G) |
| Core | All areas except Science and Social Studies | Standard achievement testing without added subjects | 3 hrs 45 min |
| Survey | Reading, Written Expression, Mathematics only | Quick screening, Levels 7-14 only | 1 hr 40 min |
Total item counts scale with level and battery: as few as 146 items at Level 5 up to 422 items at Level 14, with 302 items at Levels 15-17/18. Levels 5-8 are untimed, which matters for younger test-takers who work at different paces. For a level-by-level breakdown of what changes between grades, our IA Exam Domains 2026 guide goes deeper into how content shifts as students move up levels.
Key Takeaway
Before registering, confirm which battery your school, district, or gifted program actually requires - Complete, Core, and Survey are not interchangeable, and some programs (like Ohio's gifted identification process) only accept specific ones.
The 13 IA Domains
Riverside does not publish a percentage weight for any subtest, so there's no official breakdown of "this domain is worth X% of your score." What's known is which domains exist and roughly what they measure. A student preparing for the Complete Battery should expect content pulled from all thirteen areas below.
Vocabulary
Measures word knowledge and the ability to identify meanings in context.
- Multiple-choice format is standard
- Difficulty scales with grade-level word lists
Word Analysis
Assesses phonics and decoding skills, most relevant at earlier levels.
- Common at Levels 5-8
- Foundational for later reading domains
Listening
Evaluates comprehension of spoken passages, typically administered orally by the proctor.
- Present mainly at lower levels
- Requires careful listening rather than re-reading text
Language
Covers grammar, usage, and sentence structure conventions.
- Often overlaps with Written Expression skills
- Tests recognition of correct vs. incorrect usage
Reading
Passage-based comprehension questions across fiction and informational text.
- One of the largest domains by item count at most levels
- Tests literal recall and inference
Written Expression
Measures editing and composition skills rather than free-response writing.
- Multiple-choice items on revising sentences and paragraphs
- Included in the Survey Battery alongside Reading and Mathematics
Mathematics
Broad problem-solving across number sense, geometry, measurement, and data.
- Distinct from the separate Computation domain
- Included in every battery, including Survey
Computation
Direct calculation skills, separate from applied Mathematics problem-solving.
- Tests speed and accuracy on arithmetic operations
- Grows more complex at upper levels
Social Studies
Content knowledge in history, geography, civics, and economics.
- Only included in the Complete Battery
- Absent from Core and Survey
Science
General science concepts across life, earth, and physical science.
- Only included in the Complete Battery
- Not part of Core or Survey testing
Spelling
Identifies correctly and incorrectly spelled words in context.
- Multiple-choice recognition format
- Part of the broader language arts cluster
Punctuation
Recognizing correct punctuation usage within sentences and passages.
- Grouped with Capitalization and Language mechanics
- Tests rule application, not just memorization
Capitalization
Identifying proper capitalization rules in sentence context.
- Frequently paired with Punctuation items
- Common across most grade levels
For a domain-by-domain study plan and how these areas are sequenced across the fourteen levels, see the full IA Exam Domains 2026: Complete Guide to All 13 Content Areas.
Question Format and Delivery Mode
The IA is predominantly multiple choice, delivered either on paper or online through Riverside DataManager. This isn't a hybrid test where a student picks freely between formats mid-administration - whichever mode a student begins in, they must finish in. Schools generally decide the delivery mode in advance based on available technology and testing logistics.
Form G stands apart because it includes technology-enhanced items - meaning interactive question types beyond basic multiple choice - but only in the online version. If a school administers Form G on paper, those enhanced items simply aren't part of the mix, and Form G isn't offered at all at Levels 15-17/18 regardless of delivery mode.
Curious how the length and format compare to other assessments students may encounter? Our breakdown at How Hard Is the IA Exam? Complete Difficulty Guide 2026 covers pacing strategy by level.
How IA Scores Actually Work
Unlike licensure or certification exams, the IA has no pass or fail threshold built into the test itself. Instead, results are reported through multiple norm-referenced measures:
- Standard Score - a scaled score allowing comparison across levels and forms
- Grade Equivalent - translates performance into an approximate grade level
- National Percentile Rank - shows standing relative to the national norm group
- National Stanine - a 1-9 banded score for quick interpretation
- Normal Curve Equivalent - a standardized score useful for statistical comparisons
- Local Percentile Rank - standing relative to a specific school or district group
At Levels 12-17/18, reports also include Lexile and Quantile measures plus ACT College Readiness Benchmarks, giving older students an early signal about college-readiness trajectories. Because there's no universal cutoff score, what counts as a "good" result depends entirely on the purpose - a gifted program, a homeschool portfolio requirement, or a district's own benchmark. For a full explanation of how these numbers get used, read IA Passing Score 2026: Exactly What You Need to Pass.
Key Takeaway
Scores from the IA never expire and there's no renewal process - but because alternate Forms E, F, and G exist, students can retest in subsequent years without seeing repeated content.
Registration, Access, and Cost
Schools and districts purchase IA materials directly from Riverside, so most students encounter this test simply by showing up to class during a scheduled testing window - there's no separate consumer registration process at the school level. For district-based testing calendars, see IA Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Homeschool families are a different story. Because there's no direct-to-consumer purchase path through Riverside, homeschoolers test through authorized third-party services:
- Seton Testing - approximately $45 per student for online administration
- BJU Press - roughly $43 to $52 per student
Turnaround time differs by delivery mode as well: online results typically return in about 24 hours, while paper-based testing takes roughly 10 business days to score and report. If cost planning matters for your family or program, our detailed IA Certification Cost 2026: Complete Pricing Breakdown walks through the numbers side by side.
Who Uses IA Scores
IA results feed into several distinct decisions depending on the setting:
- Gifted identification - Ohio, for example, requires a 95th percentile on the Complete Composite for superior cognitive gifted identification, and approves the Survey Battery only for prescreening purposes, not final determination.
- CogAT pairing - if a student has taken CogAT Form 7 or 8 within the prior two years, that score unlocks predicted achievement scores alongside IA results, giving a fuller academic-potential picture.
- Homeschool documentation - many homeschool families use IA scores to satisfy state-level academic progress documentation requirements.
- District benchmarking - schools track Local Percentile Rank and Grade Equivalent scores over multiple years to monitor cohort progress.
Because eligibility rules (like Ohio's percentile threshold) vary by state and program, it's worth reviewing your specific requirement before testing. Our IA Requirements 2026: Eligibility, Prerequisites & How to Qualify page outlines how these rules typically apply.
Accommodations Available
The IA supports a range of accommodations for students who need them:
- Read-aloud administration
- Extended time
- Small-group or individual administration instead of full classroom testing
- Out-of-level testing for students working above or below grade-level expectations
- Large-print editions, available at Levels 7-17/18
- Braille editions, available for Form E
Families or schools coordinating accommodations should confirm availability early, since not every accommodation exists across every level and form combination - Braille, for instance, is tied specifically to Form E.
Preparing for the IA the Right Way
Because the IA covers thirteen distinct domains across a battery that can run nearly five hours for the Complete Battery, a scattershot review approach tends to waste time. A more effective structure is to group domains by testing session and build familiarity in that order - mechanics domains (Punctuation, Capitalization, Spelling, Language) together, then content domains (Reading, Vocabulary, Word Analysis) together, then numerical domains (Mathematics, Computation) together, and finally content-knowledge domains (Science, Social Studies) if the Complete Battery applies.
Language Mechanics
- Review Punctuation, Capitalization, and Spelling item styles
- Practice multiple-choice editing questions for Written Expression
Reading and Vocabulary
- Practice passage-based comprehension at grade-appropriate difficulty
- Build vocabulary familiarity relevant to the student's level
Mathematics and Computation
- Separate practice for applied problem-solving vs. raw calculation speed
- Time untimed vs. timed practice differently depending on level
Content Knowledge and Full Simulation
- Review Science and Social Studies if testing the Complete Battery
- Run a full-length practice session matching the actual battery's timing
For a structured walkthrough of this approach with more detail per domain, see the IA Study Guide 2026: How to Pass on Your First Attempt. You can also run realistic timed practice sessions through our practice test platform to get comfortable with the pacing before test day, and revisit a condensed reference in the IA Cheat Sheet 2026: One-Page Review of Must-Know Facts the night before testing.
Frequently Asked Questions
No. The IA - Iowa Assessments - is a K-12 achievement battery used by schools and homeschool families, not a professional licensing or certification credential. There's no employer requirement or career license tied to it.
Fourteen levels, running from Level 5 (kindergarten midyear) through Level 17/18 (grades 11-12), with Level 9 corresponding to grade 3 and Level 14
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