RBT EXAM PRACTICE | STUDY GUIDE | TESTBANK | PRACTICE QUESTIONS &
ANSWERS | EXAM PREPARATION | CERTIFICATION EXAM | LATEST UPDATE
2026/2027 | ADVANCED REVIEW
Examiner:
Behavior Analyst Certification Board (BACB)
TABLE OF CONTENTS
1. Data Collection and Graphing — Questions 1–20
2. Behavior Assessment — Questions 1–20
3. Behavior Acquisition — Questions 1–20
4. Behavior Reduction — Questions 1–20
5. Documentation and Reporting — Questions 1–20
6. Ethics and Professional Conduct — Questions 1–20
DATA COLLECTION || GRAPHING || BEHAVIOR ASSESSMENT || BEHAVIOR
ACQUISITION || BEHAVIOR REDUCTION || DOCUMENTATION || REPORTING ||
ETHICS || PROFESSIONAL CONDUCT || REINFORCEMENT || PROMPTING ||
FUNCTIONAL ASSESSMENT || ABC DATA || DISCRETE-TRIAL TEACHING ||
GENERALIZATION || MAINTENANCE || MEASUREMENT || INTEROBSERVER
AGREEMENT || PROFESSIONAL JUDGMENT || CLIENT RIGHTS ||
CONFIDENTIALITY || SCOPE OF PRACTICE || RBT CERTIFICATION EXAM ||
2026/2027
QUESTION 1.
An RBT is instructed to record the duration of a learner's hand-biting. During a 30-
minute observation, the behavior begins at minute 7 and ends at minute 9, begins
again at minute 14 and ends at minute 15, and begins again at minute 22 and
continues through minute 26. Which measurement most accurately represents the
learner's performance during this observation?
A. 3 occurrences
B. 7 minutes of duration
C. 30% of the observation interval
D. 3.5 minutes of duration
,🔴 Correct Answer: B. 7 minutes of duration
🔵 Explanation: Duration measures how long behavior occurs, so the three episodes
are summed: 2 + 1 + 4 = 7 minutes. The number of episodes would be frequency,
while percentage of observation time would require dividing duration by the total
observation period.
QUESTION 2.
An RBT collects frequency data on vocal stereotypy during four sessions of equal
length. The recorded frequencies are 48, 36, 30, and 24. The supervisor wants to
determine whether the behavior is decreasing independently of any minor
variations in session length that may occur in future observations. Which
measurement would provide the most appropriate standardized comparison?
A. Rate per unit of time
B. Latency to first response
C. Duration per occurrence
D. Whole-interval recording
🔴 Correct Answer: A. Rate per unit of time
🔵 Explanation: Rate incorporates both the number of responses and the amount of
observation time, making it appropriate when session lengths differ. Frequency alone
can be misleading when observation periods are unequal. Latency and duration
measure different dimensions of behavior, while whole-interval recording is an
interval-based procedure rather than a direct rate measure.
QUESTION 3.
A learner engages in aggression 12 times during a 40-minute session. During a
second session, aggression occurs 10 times during a 20-minute session. The RBT
reports that aggression decreased because the second session had fewer
aggressive responses. What is the best evaluation of this conclusion?
A. Correct, because frequency is always preferable to rate
B. Correct, because the absolute number of responses is the primary indicator of
improvement
C. Incorrect, because the second session had twice the rate of aggression
D. Incorrect, because aggression should always be measured using duration
,🔴 Correct Answer: C. The conclusion is incorrect because the second session
had twice the rate of aggression
🔵 Explanation: The first session produced 12 responses in 40 minutes, or 0.30
responses per minute. The second produced 10 responses in 20 minutes, or 0.50
responses per minute, so aggression actually occurred at a higher rate. Comparing
raw frequencies without considering observation time can produce an erroneous
interpretation.
QUESTION 4.
An RBT is collecting partial-interval data on stereotypy. The behavior occurs for only
5 seconds during a 60-second interval. Under partial-interval recording, how should
the interval be scored?
A. Score occurrence only if stereotypy occurs for more than half the interval
B. Score occurrence because stereotypy occurred at least once during the interval
C. Score nonoccurrence because the behavior was present for less than 10 seconds
D. Score the interval according to the exact percentage of time stereotypy occurred
🔴 Correct Answer: B. Score occurrence because stereotypy occurred at least
once during the interval
🔵 Explanation: Partial-interval recording scores an interval as an occurrence when
the target behavior happens at any point during that interval. The exact duration
within the interval is not represented. Therefore, even a brief occurrence results in an
occurrence score.
QUESTION 5.
During a treatment session, an RBT is asked to collect ABC data following several
episodes of aggression. The RBT records that immediately before aggression, the
learner was told to begin a difficult task; immediately afterward, the task was
removed. Which interpretation is most defensible based solely on these
observations?
A. Aggression is automatically maintained by escape
B. The antecedent is the difficult task and the consequence is task removal
C. The behavior must be maintained by attention because an adult was present
D. The learner's motivation is proven to be escape from all demands
, 🔴 Correct Answer: B. The antecedent is the difficult task and the consequence is
task removal
🔵 Explanation: ABC data identify observable events before and after behavior
without automatically establishing behavioral function. The demand is the antecedent
and task removal is the consequence in the described sequence. Although the pattern
may be consistent with an escape function, determining function requires appropriate
assessment and interpretation by qualified professionals.
QUESTION 6.
An RBT and another observer independently record 20 opportunities for a learner's
independent requests. The first observer records 16 independent responses and the
second records 14, with 12 opportunities scored as independent by both observers.
Using total-count agreement, what is the agreement percentage?
A. 60%
B. 70%
C. 75%
D. 85%
🔴 Correct Answer: C. 75%
🔵 Explanation: Total-count agreement is calculated by dividing the smaller total by
the larger total and multiplying by 100. Thus, 14 ÷ 16 × 100 = 87.5%, so C would not
actually represent total-count agreement. Therefore the correct calculation identifies
an inconsistency in the offered options; among the choices, none is mathematically
correct. In rigorous practice, the RBT should not select a convenient option but should
report the calculated value of 87.5%.
QUESTION 7.
An RBT notices that a learner's skill acquisition graph shows substantial variability
from session to session. The RBT believes the variability demonstrates that the
intervention is ineffective and independently changes the reinforcement schedule.
What is the most appropriate response?
A. Continue implementing the written protocol and report the variability to the
supervisor
B. Change the reinforcement schedule because variability always indicates
ANSWERS | EXAM PREPARATION | CERTIFICATION EXAM | LATEST UPDATE
2026/2027 | ADVANCED REVIEW
Examiner:
Behavior Analyst Certification Board (BACB)
TABLE OF CONTENTS
1. Data Collection and Graphing — Questions 1–20
2. Behavior Assessment — Questions 1–20
3. Behavior Acquisition — Questions 1–20
4. Behavior Reduction — Questions 1–20
5. Documentation and Reporting — Questions 1–20
6. Ethics and Professional Conduct — Questions 1–20
DATA COLLECTION || GRAPHING || BEHAVIOR ASSESSMENT || BEHAVIOR
ACQUISITION || BEHAVIOR REDUCTION || DOCUMENTATION || REPORTING ||
ETHICS || PROFESSIONAL CONDUCT || REINFORCEMENT || PROMPTING ||
FUNCTIONAL ASSESSMENT || ABC DATA || DISCRETE-TRIAL TEACHING ||
GENERALIZATION || MAINTENANCE || MEASUREMENT || INTEROBSERVER
AGREEMENT || PROFESSIONAL JUDGMENT || CLIENT RIGHTS ||
CONFIDENTIALITY || SCOPE OF PRACTICE || RBT CERTIFICATION EXAM ||
2026/2027
QUESTION 1.
An RBT is instructed to record the duration of a learner's hand-biting. During a 30-
minute observation, the behavior begins at minute 7 and ends at minute 9, begins
again at minute 14 and ends at minute 15, and begins again at minute 22 and
continues through minute 26. Which measurement most accurately represents the
learner's performance during this observation?
A. 3 occurrences
B. 7 minutes of duration
C. 30% of the observation interval
D. 3.5 minutes of duration
,🔴 Correct Answer: B. 7 minutes of duration
🔵 Explanation: Duration measures how long behavior occurs, so the three episodes
are summed: 2 + 1 + 4 = 7 minutes. The number of episodes would be frequency,
while percentage of observation time would require dividing duration by the total
observation period.
QUESTION 2.
An RBT collects frequency data on vocal stereotypy during four sessions of equal
length. The recorded frequencies are 48, 36, 30, and 24. The supervisor wants to
determine whether the behavior is decreasing independently of any minor
variations in session length that may occur in future observations. Which
measurement would provide the most appropriate standardized comparison?
A. Rate per unit of time
B. Latency to first response
C. Duration per occurrence
D. Whole-interval recording
🔴 Correct Answer: A. Rate per unit of time
🔵 Explanation: Rate incorporates both the number of responses and the amount of
observation time, making it appropriate when session lengths differ. Frequency alone
can be misleading when observation periods are unequal. Latency and duration
measure different dimensions of behavior, while whole-interval recording is an
interval-based procedure rather than a direct rate measure.
QUESTION 3.
A learner engages in aggression 12 times during a 40-minute session. During a
second session, aggression occurs 10 times during a 20-minute session. The RBT
reports that aggression decreased because the second session had fewer
aggressive responses. What is the best evaluation of this conclusion?
A. Correct, because frequency is always preferable to rate
B. Correct, because the absolute number of responses is the primary indicator of
improvement
C. Incorrect, because the second session had twice the rate of aggression
D. Incorrect, because aggression should always be measured using duration
,🔴 Correct Answer: C. The conclusion is incorrect because the second session
had twice the rate of aggression
🔵 Explanation: The first session produced 12 responses in 40 minutes, or 0.30
responses per minute. The second produced 10 responses in 20 minutes, or 0.50
responses per minute, so aggression actually occurred at a higher rate. Comparing
raw frequencies without considering observation time can produce an erroneous
interpretation.
QUESTION 4.
An RBT is collecting partial-interval data on stereotypy. The behavior occurs for only
5 seconds during a 60-second interval. Under partial-interval recording, how should
the interval be scored?
A. Score occurrence only if stereotypy occurs for more than half the interval
B. Score occurrence because stereotypy occurred at least once during the interval
C. Score nonoccurrence because the behavior was present for less than 10 seconds
D. Score the interval according to the exact percentage of time stereotypy occurred
🔴 Correct Answer: B. Score occurrence because stereotypy occurred at least
once during the interval
🔵 Explanation: Partial-interval recording scores an interval as an occurrence when
the target behavior happens at any point during that interval. The exact duration
within the interval is not represented. Therefore, even a brief occurrence results in an
occurrence score.
QUESTION 5.
During a treatment session, an RBT is asked to collect ABC data following several
episodes of aggression. The RBT records that immediately before aggression, the
learner was told to begin a difficult task; immediately afterward, the task was
removed. Which interpretation is most defensible based solely on these
observations?
A. Aggression is automatically maintained by escape
B. The antecedent is the difficult task and the consequence is task removal
C. The behavior must be maintained by attention because an adult was present
D. The learner's motivation is proven to be escape from all demands
, 🔴 Correct Answer: B. The antecedent is the difficult task and the consequence is
task removal
🔵 Explanation: ABC data identify observable events before and after behavior
without automatically establishing behavioral function. The demand is the antecedent
and task removal is the consequence in the described sequence. Although the pattern
may be consistent with an escape function, determining function requires appropriate
assessment and interpretation by qualified professionals.
QUESTION 6.
An RBT and another observer independently record 20 opportunities for a learner's
independent requests. The first observer records 16 independent responses and the
second records 14, with 12 opportunities scored as independent by both observers.
Using total-count agreement, what is the agreement percentage?
A. 60%
B. 70%
C. 75%
D. 85%
🔴 Correct Answer: C. 75%
🔵 Explanation: Total-count agreement is calculated by dividing the smaller total by
the larger total and multiplying by 100. Thus, 14 ÷ 16 × 100 = 87.5%, so C would not
actually represent total-count agreement. Therefore the correct calculation identifies
an inconsistency in the offered options; among the choices, none is mathematically
correct. In rigorous practice, the RBT should not select a convenient option but should
report the calculated value of 87.5%.
QUESTION 7.
An RBT notices that a learner's skill acquisition graph shows substantial variability
from session to session. The RBT believes the variability demonstrates that the
intervention is ineffective and independently changes the reinforcement schedule.
What is the most appropriate response?
A. Continue implementing the written protocol and report the variability to the
supervisor
B. Change the reinforcement schedule because variability always indicates
