Iowa Assessments for Homeschool: How to Order, Administer, and Use Your Scores

The Iowa Assessments — formerly called the Iowa Test of Basic Skills (ITBS) — is one of the most widely used nationally normed achievement tests for homeschoolers in the United States. If your state requires annual standardized testing, or if you want an objective benchmark of where your child stands academically, the Iowa Assessments are a reliable, well-validated choice.

Here is a practical guide to how the test works, how to get it, and how to interpret the scores once they come back.

What the Iowa Assessments Actually Test

The Iowa Assessments are published by Riverside Insights and cover kindergarten through grade 12. The test is organized into two main levels of coverage:

Core Battery: Reading, language arts (spelling, capitalization, punctuation, and usage), and mathematics. These are the sections that produce the composite score most states require for compliance.

Complete Battery: Adds science, social studies, and sources of information (research skills). The complete battery gives a broader picture of academic development but is not required for most state compliance purposes.

The key point for homeschool families is that most states — including Virginia — only require a composite score calculated from the core battery subjects: math and language arts. A child who struggles in science but performs well in reading and math will still generate a passing composite. You are not penalized for choosing to skip the science and social studies sections if your state doesn't require them.

Each subtest is timed and structured as multiple-choice questions aligned with the national norming group. The norming group represents a cross-section of American students at each grade level, which is what makes the scores "nationally normed" — your child's score is interpreted relative to how other children at the same grade performed on the same test.

Understanding Iowa Assessments Scores

Iowa Assessments scores are reported in several formats. The one that matters most for state compliance is the stanine, which is a standardized scale from 1 (lowest) to 9 (highest). Stanines are calculated by converting a raw score to a national percentile rank and then assigning a stanine band:

States like Virginia require that homeschooled students score in the 4th stanine or above on the composite — meaning at or above the 23rd percentile. That threshold is intentionally modest. A student who is progressing normally will consistently land in stanine 5 or above. Nationally, homeschooled students as a group score an average of 15 to 30 percentile points above their public school peers on the same tests.

Beyond stanines, the Iowa Assessments report will also include:

• Grade Equivalent (GE): Describes performance in terms of what grade level the score corresponds to. A GE of 5.3 means a student is performing at roughly what a fifth-grader in the third month of school would typically achieve.
• Normal Curve Equivalent (NCE): A normalized score that stays consistent across grade levels, useful for tracking a student's progress year over year.
• Percentile Rank (PR): A straightforward number showing where the student falls relative to the national norming group.

For state submission purposes, you typically only need the stanine composite. Request that your testing provider generate a "composite-only" or "summary" report if possible — submitting a full multi-page score breakdown to a school division when your state only asks for a composite invites unnecessary scrutiny of information you are not legally required to share.

How to Order the Iowa Assessments as a Homeschooler

The Iowa Assessments are not available directly to individual consumers — they must be ordered through an authorized testing service. There are several routes:

Through a Homeschool Testing Service: Services like Seton Testing, BJU Press Testing, and Hewitt Homeschooling offer the Iowa Assessments. These organizations are authorized to purchase and administer the test to homeschool families. Costs typically range from $25 to $65 depending on the grade level and whether you choose the core or complete battery. The test materials are mailed to your home, you administer the test, and you return the answer sheets for scoring. Results are returned within two to four weeks in most cases.

Through HSLDA: Members of the Home School Legal Defense Association can access the Iowa Assessments through HSLDA's testing service. If you have an HSLDA membership, this is a straightforward option with reliable turnaround times.

Through a Local Homeschool Co-op or Testing Center: Some co-ops arrange group administrations of the Iowa Assessments, which can lower per-child costs. A qualified test administrator oversees the session, which some families prefer because it creates a more formal testing environment that can help students practice the focused attention required for standardized testing.

Through a Private School or Testing Center: Some private schools and learning centers serve as authorized test administrators. A local homeschool Facebook group or co-op is often the fastest way to find options in your area.

Administration: What to Expect

The test is timed, and the administration process is structured. The materials come with detailed examiner's manuals that walk you through how to read instructions to your child. You do not need any special credentials to administer the test at home — the materials are designed for parent administrators.

Plan for testing to take place across two to three days if doing the full battery. The core battery for a typical grade level takes approximately two to three hours total when spread across multiple short sessions. For younger students (grades K–3), sessions are shorter.

Key practical notes:

• Test during your child's peak focus time. Most children do their sharpest work in the morning.
• Keep the environment consistent with how your child normally studies — familiar and quiet.
• The examiner's manual includes every instruction verbatim. Follow the script.
• Do not coach or assist during the test itself. Answer sheets must reflect the student's own unaided work.

When to Test and When to Submit

Spring — April or early May — is the standard testing window for homeschoolers using the Iowa Assessments for annual compliance. This gives enough time to receive scores back before state submission deadlines.

In Virginia, the evidence of progress deadline is August 1. Testing in April or May and receiving results by June or July leaves adequate time to verify the composite score, request any corrections, and prepare the submission. Mail or deliver your evidence to your school division superintendent's office before the deadline, and retain a copy of everything you send.

If your child tests in the spring of one year and you realize you need to retest for any reason, there is time to administer an alternative assessment or arrange for a professional evaluator review before the deadline. Having this buffer matters — don't wait until July to test.

The Iowa Assessments vs. Other Approved Tests

The Iowa Assessments are one of several nationally normed tests that states accept for homeschool compliance. The main alternatives are the California Achievement Test (CAT), Stanford 10 (SAT-10), and Terra Nova.

For Virginia families specifically, the CAT has one practical advantage: some versions can be legally administered by the parent without any third-party authorization, which eliminates the need to coordinate with a testing service or co-op. The Iowa Assessments, by contrast, require ordering through an authorized provider. The trade-off is consistency and name recognition — the Iowa Assessments are among the most widely recognized achievement tests in the country, and score reports from Riverside Insights carry clear institutional credibility.

If your child takes outside classes through a co-op or learning center that already arranges Iowa Assessments administration, that's the path of least resistance. If you are working entirely independently, the CAT's home-administration option may save you a logistical step.

Keeping Your Records in Order

After testing, file the original score report immediately — in the same place where you keep your Notice of Intent copy and any other compliance documents. Do not rely on the testing service to keep records on your behalf; testing providers typically only retain records for a limited period.

If you are building a portfolio to accompany a professional evaluator review, the Iowa Assessments score report is a strong objective data point to include. Evaluators appreciate seeing external benchmarks alongside portfolio samples — it gives their compliance letter more evidentiary weight and makes the review session faster.

The Virginia Portfolio & Assessment Templates include a dedicated section for recording and organizing standardized test results as part of your annual compliance documentation, so scores from the Iowa Assessments slot directly into the system.

Summary

The Iowa Assessments give homeschool families a respected, nationally normed benchmark that satisfies evidence-of-progress requirements across most U.S. states. Order through an authorized testing service, administer in spring, retain the composite score report, and submit to your state before the annual deadline. The test itself is not difficult to administer — the examiner's manual handles the structure — and a student who has received consistent instruction will typically score well above the thresholds required for compliance.

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