BCBA Mock Exam 6th Edition 2025: Test Yourself Online Free

BCBA Mock Exam 6th Edition: Take our high-impact mock exam with 185 challenging questions, instant feedback, and expert rationales to sharpen your skills and pass with confidence.

Welcome to your BCBA 6th Edition Mock Quiz

A BCBA observes a sudden spike in self-injurious behavior after a change in medication. The trend increases across three days, followed by a sharp decline without any intervention. What is the most appropriate interpretation of the graphed data?

The medication had no impact; the behavior followed a typical extinction burst.

The behavior change reflects a naturally occurring variable.

The medication likely contributed to the spike, but causality cannot be confirmed without further analysis.

The reduction in behavior indicates the medication was effective.

A BCBA observes that the RBT is using response blocking for stereotypy, but the intervention was not part of the behavior plan. What is the most ethical course of action?

Ignore it since it may reduce the behavior.

Immediately stop the RBT and report them to the BACB.

Provide immediate corrective feedback, document it, and review the plan with the team.

Remove the client from services until a team review is conducted.

During a generalization probe, a client who mastered greeting peers in the clinic fails to greet unfamiliar peers at a park. What should the BCBA do next?

Redesign the entire skill acquisition program.

Add NET (Natural Environment Teaching) with novel peers to increase generalization.

Reassess prerequisites before continuing.

Introduce prompts in the park setting and gradually fade them.

Which experimental design offers the strongest control over confounding variables while balancing practicality in applied settings?

Reversal design

Multiple baseline across subjects

Changing criterion

Alternating treatments

A newly certified BCBA is asked to supervise a case involving feeding disorders, but they’ve only worked with ASD in classroom settings. What should they do?

Accept the case and study feeding interventions independently.

Accept the case but refer to an experienced colleague for plan design.

Decline the case and refer the family to a BCBA with feeding expertise.

Accept the case if they feel confident, even without direct experience.

A BCBA is conducting a multiple baseline design across settings. Behavior improves in Setting A after the intervention is introduced. Before the intervention begins in Setting B, behavior improves unexpectedly. What should the BCBA do next?

Continue the study as planned since the effect occurred in Setting A.

Repeat baseline in Setting B to re-establish control.

End the study and change to a reversal design.

Apply intervention in Setting B immediately to prevent regression.

During a 2-hour observation, a BCBA instructs the RBT to use 10-second whole interval recording to measure on-task behavior. The RBT reports very low on-task levels. What’s the most likely reason for the underestimation?

Whole interval recording overestimates the behavior’s true rate.

The RBT likely missed the beginning of intervals.

Whole interval recording underestimates duration-based behavior.

The intervals were too short for reliable results.

A parent gives a BCBA a $20 coffee gift card at the end of a long week. The BCBA politely declines, but the parent insists. The BCBA keeps the card and logs it in their notes. Which part of the BACB Ethics Code is most relevant?

Accepting gifts is allowed if documented.

Gifts under $50 are permitted if infrequent.

The BCBA should have refused and documented the offer.

The BCBA must accept small gifts to build rapport.

A child independently ties their shoes in the clinic but not at home. The BCBA suspects the home environment contains different cues. What is the best next step?

Retrain shoe-tying in the clinic.

Introduce reinforcement schedules at home.

Conduct generalization programming in the home setting.

Increase prompting during clinic sessions.

A BCBA is supervising three RBTs across five clients. One RBT has not received supervision for four weeks. What is the most immediate ethical concern?

The BCBA must increase supervision for all RBTs immediately.

Lack of supervision may put the client’s treatment and the RBT’s certification at risk.

This is acceptable if the RBT is experienced.

The RBT can work independently with indirect supervision.

A client’s head-banging decreases rapidly after the introduction of planned ignoring. However, they begin screaming instead. What is this an example of?

Extinction burst

Response generalization

Stimulus generalization

Functional communication

An RBT notices another technician consistently marking incorrect data but fears retaliation. What is the BCBA’s responsibility upon hearing this?

Suggest the RBT handle it directly.

Advise the RBT to ignore it to preserve the team dynamic.

Thank the RBT, investigate the claim, and document findings.

Reassign the case to avoid conflict.

A BCBA conducts a functional analysis using an ABC narrative. Across 12 sessions, attention follows each occurrence of screaming. What is the best interpretation?

The behavior is maintained by access to tangibles.

The behavior likely serves an escape function.

The data suggests attention is a probable reinforcer.

The function cannot be determined without a latency recording.

You overhear a colleague discussing a client's aggressive behaviors by name in a public break room. What should you do?

Privately remind them of confidentiality and report to your supervisor.

Ignore it—it wasn’t said loudly.

Warn them in front of others to set an example.

Record the conversation to prove the violation.

A child learns to respond “blue” when shown a blue card, but fails when the card is slightly darker. What phenomenon is occurring?

Overgeneralization

Stimulus fading

Faulty stimulus control

Limited stimulus generalization

A BCBA implements a VI-5 min schedule for a token economy. After initial success, the client’s responding becomes erratic, with long pauses followed by bursts of behavior. What is the likely cause?

The variable interval schedule produces consistent high rates.

The schedule lacks sufficient reinforcement density for the client.

The behavior is undergoing extinction.

Fixed interval would be more resistant to pauses.

A BCBA conducts a pairwise functional analysis with escape and control conditions. Rates of target behavior are nearly identical in both. What’s the most appropriate next step?

End the FA and switch to indirect methods.

Redesign the FA to include attention and tangible conditions.

Repeat sessions until divergence occurs.

Use a latency-based FA instead.

An RBT refuses to implement a toileting program because it conflicts with the family’s religious practices. What’s the most appropriate action for the supervising BCBA?

Continue the program as written and remind the RBT of their role.

Modify the intervention plan based on family preferences.

Report the RBT for failing to implement the plan.

Replace the RBT with one from a different background.

In a multiple baseline graph across settings, all three baselines are flat. After the intervention is introduced, behavior improves in Settings A and C, but not B. What should the BCBA conclude?

The intervention is effective across all settings.

The intervention should be withdrawn to confirm the effect.

The intervention may be effective, but Setting B requires further review.

The BCBA should end the study due to variability.

Two observers collect interval data on tantrums during a 30-minute session using partial interval recording. They agree on 18 intervals, disagree on 6, and 6 intervals had no behavior. What is the IOA?

75%

60%

90%

66%

A learner responds accurately during echoic prompts but not when shown a visual cue alone. What strategy best supports stimulus control transfer?

Re-teach the task with visual prompts only.

Add reinforcement for visual cue trials.

Use most-to-least prompting with the visual cue.

Reverse prompt sequence from visual to echoic.

An RBT documents a session but leaves out the occurrence of property destruction that happened during the final 10 minutes. What is the primary concern?

This omission violates BACB record-keeping standards.

Minor incidents don’t need to be recorded if no injury occurred.

The RBT was likely protecting the client.

This is acceptable if the BCBA already knew about the behavior.

A BCBA notices a client masters each step in a 7-step task analysis except step 4. The data remains flat despite multiple prompts. What’s the best course of action?

Remove step 4 and teach a simplified task.

Reorder the steps to reduce complexity.

Conduct a probe on step 4 in isolation to identify skill deficits.

Switch to backward chaining to strengthen early steps.

A nonverbal child learns to touch a photo of a toy to receive it. The BCBA labels this as a mand. Is this correct?

Yes, the response was under control of motivation and gained access.

No, it’s a tact because it involved a visual stimulus.

Yes, because it was reinforced socially.

No, only spoken requests are mands.

A BCBA downloads mock exam questions from a private Facebook group and uses them to train supervisees. What’s the primary ethical issue?

The BCBA is supporting group-based learning.

This is acceptable if the questions are free.

The content is public, so it’s fair use.

The BCBA is violating BACB use and copyright rules.

In order to pass the BCBA exam under the 6th Edition TCO, mock exams aren’t optional anymore. You must take them and i suggest a few not less than 3.

But it differs from person to person. But you must take them, especially if this is your first time appearing for it.

A real BCBA mock exam shows you what the real test feels like and what it will demand from you.

What Is the BCBA 6th Edition Mock Exam?

A 6th Edition BCBA mock exam is a full-length simulation that mirrors the real exam structure such as every question, domain, and time pressure.

Just like the real test, you will be faced with:

185 questions total
175 scored + 10 unscored pilot questions
4-hour time limit
All six domains were tested exactly as the BACB lays out in the 6th Edition Test Content Outline

Why You Actually Need to Use These Mock Exams

Not to generalise but most people who pass this exam train in test conditions prior to get accustomed to the scenario and patterns.

Get used to BACB-style wording (which can be brutal if you’re not ready)
Practice applying concepts in real-world scenarios, not just definitions
Build endurance for a 4-hour test
Pinpoint weak domains with data-backed feedback
Fix blind spots—before they cost you your credential

How to Use 6th BCBA Mock Exams the Right Way

Mock exams are powerful, but only if you use them intentionally and in the correct way.

Here’s how to make them work for you:

Take one early (before studying) to see what you know and don’t.
Midway through your study plan, take another to track your improvement.
Use the results to target your weak spots by domain.
A few days before the exam, do a final timed mock to lock in pacing and confidence.

And here’s the thing most people end up doing. I don’t want you to just look at your final score but Dig into each missed and wrong question.

Ask why it was wrong. Was it the wording? Concept? Logic? Learn from every slip and if you follow along and correct each mistake, you will be sure to pass with flying colors.