- Vocabulary gives you roughly 11 seconds per item across 80 questions in 15 minutes - pace matters more than depth of analysis.
- Comprehension allows 20 minutes for 36 questions across seven passages, and 90% of those items are passage-dependent.
- There is no national passing score or published pass rate - institutions set their own use of results.
- The current edition (Form I/J, 2018, author Vivian Vick Fischo) is published by Riverside Insights and distributed through PRO-ED, WPS, and PAR.
Quick Facts Snapshot
If you only have five minutes before your test date, this is the section to read. The Nelson-Denny Reading Test (NDRT) is not a certification exam with a governing board or a registration portal - it's a standardized reading assessment that schools, colleges, and workforce programs purchase and administer themselves. That single fact changes how you should think about "passing." There's no national passing score and no published pass rate because there's no central pass/fail gate; your institution decides what to do with your scores.
- Publisher: Riverside Insights, distributed through PRO-ED, WPS, and PAR
- Current edition: Forms I and J, authored by Vivian Vick Fischo, released 2018
- Older forms still in use: Forms G and H (different item counts and passage structure)
- Age/level range: 14 to 24, high school through two-year and four-year college
- Total testing time: 35 to 56 minutes depending on the administration your site chooses
For the full breakdown of how this compares to other things people assume the NDRT is, see What Is NDRT? and NDRT Meaning.
The Three Domains at a Glance
The NDRT is built around three measured areas. Understanding what each one actually tests - not just its name - is the fastest way to focus your remaining prep time. For a deeper walkthrough of each area, see the NDRT Exam Domains 2026: Complete Guide to All 3 Content Areas.
Domain 1: Vocabulary
This is the largest item pool on the test and the most time-pressured section by far.
- 80 multiple-choice items, five response options each
- 15 minutes total - about 11 seconds per item
- Word knowledge, not context-passage analysis, drives this section
Domain 2: Comprehension
Seven passages pulled from current humanities, science, and social science writing, followed by questions that test whether you actually processed the text.
- 36 questions, five options each, 20 minutes total
- 90% of items are passage-dependent - answers live in the text, not in outside knowledge
- Mixed passage subjects mean you can't specialize in one topic area and skip the rest
Domain 3: Reading Rate
An optional measure, not a separate timed test - it piggybacks on the first minute of Comprehension.
- Examinee marks the last sentence read in Passage 1 after exactly one minute
- Measures natural reading speed under real passage conditions, not skimming tricks
- Whether your site scores this at all depends on local administration choices
Key Takeaway
Because Vocabulary carries the tightest per-item clock and the biggest question count, it is the single biggest lever on your overall score - prioritize word-knowledge review over passage strategy if you're short on time.
Format, Timing, and Question Style
Under standard timing, the two core subtests run back-to-back: 15 minutes for Vocabulary, 20 minutes for Comprehension. Add the optional Reading Rate check (which is embedded in the first minute of Comprehension, not extra time) and any administrative setup, and total testing time lands between 35 and 56 minutes depending on which administration option your institution selects.
An optional extended-time administration exists for special populations such as English-language learners, and approved accommodations may extend timing further. If you believe you qualify for accommodated timing, that request goes through your institution - not through Riverside Insights directly, since there's no candidate-facing registration process to route it through.
The test can be given individually or in groups, on paper or online. Ask your proctor which delivery method and which edition (current Form I/J vs. legacy Form G/H) you'll see, since the numbers differ meaningfully between them.
| Subtest | Items | Time | Pace |
|---|---|---|---|
| Vocabulary | 80, five options each | 15 minutes | ~11 seconds/item |
| Comprehension | 36 questions across 7 passages, five options each | 20 minutes | ~33 seconds/item |
| Reading Rate (optional) | Marker in Passage 1 | 1 minute (within Comprehension time) | N/A |
For a fuller discussion of what makes this test genuinely hard versus just unfamiliar, read How Hard Is the NDRT Exam? Complete Difficulty Guide 2026. And if your program has told you a specific cutoff, cross-check it against NDRT Passing Score 2026: Exactly What You Need to Pass before assuming it applies universally.
Materials and Cost Breakdown
Because there's no individual registration fee for test-takers, cost questions usually come from administrators, tutors, or programs buying materials - but it's worth knowing what those materials actually cost so you understand where your test booklet came from.
- Forms I and J Complete Kit: $376
- Examiner's Manual: $72
- Test booklets (pack of 25): $96
- Self-scorable answer sheets (pack of 50): $114
These are Riverside Insights list prices for institutional purchase, not fees you pay to sit the test. A full pricing walkthrough - including how these numbers compare across kit configurations - lives at NDRT Certification Cost 2026: Complete Pricing Breakdown.
Form I/J vs. Older Forms G/H
The current edition - Forms I and J - was released in 2018 and consists of two equated parallel forms usable interchangeably as a pretest and posttest. That equating matters if your program is measuring reading growth over a semester or a training cycle: I and J are designed to be statistically comparable to each other.
Older Forms G and H are still in circulation at some sites. They use 80 vocabulary items but only 38 comprehension questions spread across five passages - a different structure than the current 36-question, seven-passage Comprehension section in Forms I/J. If your practice materials describe five passages instead of seven, or 38 comprehension questions instead of 36, you're looking at legacy-form content, and your actual pacing plan should shift accordingly.
Key Takeaway
Never assume your practice material matches your live form. Ask your proctor directly: "Am I taking Form I, Form J, G, or H?" It changes both the passage count and the comprehension item count.
How Results Are Reported
Because there's no national passing score, results are reported descriptively rather than as a pass/fail flag:
- Grade and age equivalents
- Percentile ranks
- Index scores with a mean of 100 and a standard deviation of 15
- A General Reading Ability composite combining subtest performance
Norms behind these scores were collected between 2013 and 2018 across an age-based sample (N=4,010) and a grade-based sample (N=3,487), stratified to 2017 US population estimates. Reliability data - average internal consistency of .85 to .95, alternate-form reliability of .88 to .94, and test-retest reliability of .89 to .98 - indicates the test produces consistent scores across repeated administrations and between Forms I and J. Diagnostic accuracy figures (.73 sensitivity, .80 specificity, .88 ROC/AUC) are reported for identifying reading difficulty, which is part of why some institutions use it as a placement or screening tool rather than a strict gatekeeping exam.
For a data-focused look at how these numbers translate into real outcomes, see NDRT Pass Rate 2026: What the Data Shows.
Who Administers and Uses This Test
Because the NDRT is purchased and given locally rather than centrally registered, "who requires it" varies by institution. Community colleges, four-year programs, and workforce or training pipelines use it for placement, progress monitoring, or reading-level screening within the 14-to-24 age and grade range it's designed for. There's no external certifying body checking a candidate database, and no employer-facing credential number attached to your result - your score belongs to the institution that administered the test.
If you landed here because you're trying to figure out whether this connects to a job requirement, credentialing pathway, or training program, start with What Is A NDRT? and What Does NDRT Stand For? to confirm you're looking at the right acronym before you invest study time. If your specific situation involves eligibility questions, NDRT Requirements 2026: Eligibility, Prerequisites & How to Qualify covers who typically takes this test and why.
Last-Week Review Plan
You don't need a twelve-week study plan for a test with two core subtests. What you need is a short, domain-ordered review that respects the actual time pressure of each section. Vocabulary punishes hesitation at 11 seconds per item, so drilling word recognition until it's near-automatic pays off more than any comprehension strategy. Comprehension rewards efficient passage scanning across seven topic areas, since 90% of its items are passage-dependent rather than outside-knowledge questions.
Vocabulary Speed Work
- Timed word-recognition drills, aiming for near-instant recall rather than deep definitions
- Track which word types (roots, academic vocabulary, connotation shifts) slow you down most
Comprehension Pacing
- Practice reading humanities, science, and social science passages under a 20-minute, 36-question clock
- Focus on locating answer evidence in-text, since almost all items are passage-dependent
Reading Rate Awareness
- Time yourself reading one unfamiliar passage for exactly one minute and mark your stopping point
- Get comfortable with natural pace rather than artificially skimming
Mixed Review and Logistics
- Confirm which form (I, J, G, or H) and which administration length applies to your test date
- Run a full mock session combining both subtests back-to-back under real timing
For a more complete methodology behind each of these blocks, see the NDRT Study Guide 2026: How to Pass on Your First Attempt. You can also run timed mock sections on our practice test platform to get a feel for the 15-minute and 20-minute clocks before test day.
FAQ
No. Institutions purchase the test materials themselves - Complete Kits, manuals, booklets, and answer sheets - and administer the test locally. There's no candidate registration fee because there's no central registration system.
Forms I and J are the current edition released in 2018, with 80 vocabulary items and 36 comprehension questions across seven passages. Older Forms G and H, still used at some sites, have 80 vocabulary items but only 38 comprehension questions across five passages.
Standard timing is 15 minutes for Vocabulary and 20 minutes for Comprehension. Total testing time runs 35 to 56 minutes depending on which administration option - including the optional extended-time version - your institution selects.
No. It's captured within the first minute of the Comprehension subtest - you simply mark the last sentence you've read in Passage 1 after exactly one minute, and it's an optional measure some institutions choose not to score.
Vocabulary, since it has the largest item pool (80 items) and the tightest per-item pace at roughly 11 seconds each, making it the biggest single driver of overall score.