BACB Exam Question with Complete
Solutions
Jasper counted that Felicity sneezed 8 times. Which dimensional quantity of behavior is
measured - ANSWERSfrequency
Sophie engaged in 24 episodes of crying. The observation period was 6 hours. What was
Sophie's rate of crying? - ANSWERS4 episodes/hour
Scottie start his homework 2 minutes after his mom asked him to start. It took him 15 minutes
to complete his math assignment, 28 minutes to complete his writing assignment, and 7
minutes to complete his science assignment. In between math and writing, he used the
restroom for 5 minutes. What was the total duration of completing his homework? -
ANSWERS50 minutes, does not include the 2 minutes it took to start and using the restroom for
5 minutes (15 + 28 + 7 = 50)
After the teacher says, "ok, class is out," a student continues to remain at his desk for 2 minutes
before he gets up and packs his bag. It takes him 2 minutes to gather his books, 3 minutes to put
them in his backpack, and 1 minute to walk back to his desk and take a seat. What is this
student's latency of packing relative to the announcement? - ANSWERS2 minutes
Tommy's mom says he eats his food quickly: He takes 12 bites of food per minute. What would
be the estimated average IRT? - ANSWERS5 seconds
Christina puts a toy in front of Judy on 15 different occasions. Judy approached the toy on 10
occasions and just walked away on 3 occasions. What is the percent occurrence of Judy
approaching the toy? - ANSWERS67% (10 divided by 15)
, Across 3 days, there was low IOA on data collected during a new procedure implemented with a
student. For the student's behavior measured by two observers, agreement was calculated at
40%, 50% and 45% for each respective day. What could be a potential issue? - ANSWERSThe
definition of the target behavior is unclear
Trina reviewed a video recording of a student 3 times, and took data on the student's eye
contact using a stopwatch, each time she counted 17 seconds. The client actually engaged in 23
seconds of eye contact. The fact that these 2 numbers don't match is because Trina's
measurement lacks - ANSWERSAccuracy (Reliable b/c she viewed the video recording 3 times,
But it is not accurate)
Tommy's doctor suggested that he slow his pace of eating. Which continuous measurement
procedure should be used in order to monitor Tommy's behavior and implement an appropriate
behavior plan to help him take bites at a slower pace? - ANSWERSIRT
Trudy often interjects loudly during instruction which disrupts the other 28 students in her
classroom. B/c the teacher can't collect data on this, a 1:1 aide was assigned to help Trudy.
What's the best discontinuous measurement procedure to train the aide to use? -
ANSWERSPartial interval sampling o (Not event recording b/c it is not discontinuous
measurement procedure. Not whole interval procedure b/c underestimates behavior they want
to decrease. Not momentary time sampling b/c can underestimate data)
After completing a preference assessment, Stella has several possible reinforcers she'd like to
use w/her client/ If she wants to assess whether or not these stimuli function as reinforcers for
the client by allowing the client to choose to work for either one stimulus or another, what
assessment procedure can she use? - ANSWERSConcurrent operant reinforcer assessment (This
is talking about a reinforcer assessment not a preference assessment b/c it mentions she
completed a preference assessment and that she wants to assess whether stimuli function as
reinforcers)
Sally is taking data on how long it takes Carina to swim around the pool Which dimension of
behavior is Sally measuring? - ANSWERSDuration
Solutions
Jasper counted that Felicity sneezed 8 times. Which dimensional quantity of behavior is
measured - ANSWERSfrequency
Sophie engaged in 24 episodes of crying. The observation period was 6 hours. What was
Sophie's rate of crying? - ANSWERS4 episodes/hour
Scottie start his homework 2 minutes after his mom asked him to start. It took him 15 minutes
to complete his math assignment, 28 minutes to complete his writing assignment, and 7
minutes to complete his science assignment. In between math and writing, he used the
restroom for 5 minutes. What was the total duration of completing his homework? -
ANSWERS50 minutes, does not include the 2 minutes it took to start and using the restroom for
5 minutes (15 + 28 + 7 = 50)
After the teacher says, "ok, class is out," a student continues to remain at his desk for 2 minutes
before he gets up and packs his bag. It takes him 2 minutes to gather his books, 3 minutes to put
them in his backpack, and 1 minute to walk back to his desk and take a seat. What is this
student's latency of packing relative to the announcement? - ANSWERS2 minutes
Tommy's mom says he eats his food quickly: He takes 12 bites of food per minute. What would
be the estimated average IRT? - ANSWERS5 seconds
Christina puts a toy in front of Judy on 15 different occasions. Judy approached the toy on 10
occasions and just walked away on 3 occasions. What is the percent occurrence of Judy
approaching the toy? - ANSWERS67% (10 divided by 15)
, Across 3 days, there was low IOA on data collected during a new procedure implemented with a
student. For the student's behavior measured by two observers, agreement was calculated at
40%, 50% and 45% for each respective day. What could be a potential issue? - ANSWERSThe
definition of the target behavior is unclear
Trina reviewed a video recording of a student 3 times, and took data on the student's eye
contact using a stopwatch, each time she counted 17 seconds. The client actually engaged in 23
seconds of eye contact. The fact that these 2 numbers don't match is because Trina's
measurement lacks - ANSWERSAccuracy (Reliable b/c she viewed the video recording 3 times,
But it is not accurate)
Tommy's doctor suggested that he slow his pace of eating. Which continuous measurement
procedure should be used in order to monitor Tommy's behavior and implement an appropriate
behavior plan to help him take bites at a slower pace? - ANSWERSIRT
Trudy often interjects loudly during instruction which disrupts the other 28 students in her
classroom. B/c the teacher can't collect data on this, a 1:1 aide was assigned to help Trudy.
What's the best discontinuous measurement procedure to train the aide to use? -
ANSWERSPartial interval sampling o (Not event recording b/c it is not discontinuous
measurement procedure. Not whole interval procedure b/c underestimates behavior they want
to decrease. Not momentary time sampling b/c can underestimate data)
After completing a preference assessment, Stella has several possible reinforcers she'd like to
use w/her client/ If she wants to assess whether or not these stimuli function as reinforcers for
the client by allowing the client to choose to work for either one stimulus or another, what
assessment procedure can she use? - ANSWERSConcurrent operant reinforcer assessment (This
is talking about a reinforcer assessment not a preference assessment b/c it mentions she
completed a preference assessment and that she wants to assess whether stimuli function as
reinforcers)
Sally is taking data on how long it takes Carina to swim around the pool Which dimension of
behavior is Sally measuring? - ANSWERSDuration
