[U4Q] Wade implements a behavior contract with his daughter Gabby to increase the number of chores she completes. The contract states that every day Gabby completes her chores, she will earn the privilege of staying up 60 minutes later to watch her favorite TV shows. Last night Gabby’s brother let her borrow his cell phone before going to bed. Gabby stayed up for 2.5 hours last night on social media and now is very tired. Which of the following is most likely to be an extraneous variable in this scenario?

[U2Q] Raj is measuring how often his client can stay on task during a designated time. He breaks the designated time into 30-second intervals and reports the percentage of intervals for which his client stayed on task for the full 30 seconds. Which recording method did the Raj use?

[U4Q] Sandy, a BCBA, is determining the effectiveness of a differential reinforcement of other behavior (DRO) procedure on decreasing her client’s elopement. For every 5 minutes in which her client does not elope, they earn points. The amount of points her client earns varies based on the activity they are engaged in because the client appears to dislike some activities more than others. A week into implementing the DRO procedure, the client comes down with a cold. Despite this, Sandy still sees an immediate decrease in elopement and an increase in independent requests to take a break from her client. Which of the following is most likely to be an extraneous variable in this scenario?

[U4Q] The BCBA designs a treatment plan for his client Lexi including 1) a non-verbal blocking procedure for “slapping others” where adult attention has been identified as the maintaining variable, 2) a DRO procedure for the absence of “slapping others,” 3) a training in appropriate self-initiated recreational activities, and 4) a “mand-for-adult attention” training protocol. When the BCBA notices Lexi’s slapping behavior has somewhat decreased in the last two months, the BCBA eliminates the DRO procedure to see if the behavior reduction maintains. This is an example of which type of analysis?

[U4Q] A reversal design would most likely be used for which of the following?

[U4Q] Alicia, a BCBA, provides consulting services for a musician to help him improve his chord accuracy when playing the guitar. Alicia uses a handheld clicker to measure the number of times the musician presses incorrect chords. She then uses a modeling procedure to determine its effect on the number of times the musician presses incorrect chords. The musician suspects the new strings that he recently added to his guitar are responsible for the change in his performance. However, Alicia believes the handheld clicker she has been using is not counting all of the times she presses the device and that this could be impacting the count number. Which of the following is the dependent variable in this scenario?

[U2Q] While group-home staff members are preparing meals, they cannot continuously observe their clients. Monica is a BCBA working at the group home. She notices that one of the clients often pulls threads out of their clothing and wants staff to track this behavior. Which of the following recording methods would be best for Monica to use?

[U2Q] A supervisor needs to conduct her weekly supervision session and provide feedback to her RBT. The supervisor records the amount of time that passes between each of the RBT’s discrete trials. Which continuous recording method did the supervisor use?

[U2Q] Serge is interested in observing how often Camilla, one of his clients, raises her hand to participate during math class. Serge enters the classroom, takes out a pen and a piece of paper, and begins recording as soon as the math class starts. He marks each time Camilla raises her hand to participate. Serge ends his observation as soon as the math class ends. This is an example of a(n):

[U7Q] Jeremy has recently reviewed an article on the effectiveness of behavioral skills training (BST) on gun safety. Jeremy wants to see the origins of this line of research and go back to review some of the published articles. Which part of the research article is the best place for Jeremy to find this information?