How Many Questions Are on the RBT Exam in 2026?

85 items, and ten of them do not count

The current RBT examination contains 85 multiple-choice items, and ten of those items do not count toward the result. Pace mixed RBT questions in the Passy RBT prep app as if every item counts →, because you will not see a “this one is a pilot” flag on the screen. The 75 scored questions are the ones BACB uses for the pass/fail decision. The 10 unscored questions are there to try out future items.

Each item has four options and one correct answer. The examination is offered in English. The time limit is 90 minutes.

This is a fixed-length test. It does not shorten or lengthen based on performance the way some nursing or EMS exams do. Finishing all 85 questions is the design, not a signal.

How the 75 scored items are distributed

The RBT Test Content Outline (3rd ed.) publishes how those 75 scored items split:

• Data Collection and Graphing: 13
• Behavior Assessment: 8
• Behavior Acquisition: 19
• Behavior Reduction: 14
• Documentation and Reporting: 10
• Ethics: 11

Those counts are the study map. They are not a promise about the order you will see on test day. Items from different domains are mixed. Pilots are mixed. You cannot skip “the ethics section” as a block.

The what-to-study guide explains what those domains contain. The 2026 changes guide explains why older Task List counts should not be used as a substitute.

If a domain’s item count surprised you, practice that domain on its own in the Passy RBT prep app → before returning to mixed practice.

What 90 minutes implies for pacing

The RBT Handbook says the 90 minutes include reviewing the terms and conditions, the exam-navigation tutorial, the load-time prompt, the examination, and any review. Eighty-five items therefore do not get a full minute each. Arrival and check-in are outside that clock. The on-screen tutorial is inside it.

Some items will take less than a minute. A scenario with several details may take more. The useful rehearsal is not a stopwatch on the first study day. It is accurate classification first, then a later timed mixed block so the clock is familiar.

You may review and change answers if the testing software and remaining time allow. Do not count on a generous review period if the tutorial and early items used the clock. The exam-day guide covers check-in. That check-in is not the same 90 minutes as the tutorial.

Leaving items blank is a poor strategy on a four-option test. There is no extra penalty beyond being wrong, and a blank cannot be correct. Because pilots are unidentified, skipping a “weird” item might skip a scored one.

When timing starts to crowd accuracy, rehearse picking the best-supported option and moving on with timed sets in the Passy RBT prep app → instead of adding an untimed dump of extra questions.

What the item count does not tell you

The number 85 does not tell you the passing standard. BACB reports pass/fail, not a public raw score that applies to every form. Equating exists because forms are not identical. The passing-score guide explains how that works.

The number 85 also does not tell you whether the exam is hard. Difficulty comes from applying the six domains, not from the count itself. The how-hard guide separates structure from rumor.

Third-party pages sometimes still quote different totals from older administrations or from other BACB examinations. Recheck the current BACB examination-information page and handbook before you trust a number in a blog table. Fees, delivery, and item counts are time-sensitive.

A practical way to use this fact while studying

Build mixed sets that cross domains rather than 85-question marathons every night. The official exam is 85 items once, on test day. Daily work can be smaller and still train the same decision: read the stem, identify the technician task, compare four options, choose one.

Keep the outline counts in view so Acquisition and Reduction get more minutes than Assessment, without dropping Ethics or Documentation. Passy’s free set has 20 original questions. It is a checkpoint, not a full-length replica.

When the count is no longer the open question, track which domain your misses come from in the Passy RBT prep app →. That is the information the number 85 cannot give you by itself.