Whenever Pasquale’s mother asks him to clean up his room, he often waits to do so for an extended period. His behavior analyst decides to deliver praise and give Pasquale a sticker if he begins to respond within 5 seconds of his mother delivering the request. If it takes longer than 5 seconds to respond the behavior analyst will deliver mild praise. Which dimension of behavior is being targeted using differential reinforcement in this scenario?

Olivia begins assessing her client’s preferences by placing a set of stickers in front of her client and starting a 2-minute timer to observe interaction. Olivia records when her client starts and stops interacting with the stickers. Olivia repeats this procedure with other items, including markers and a small notebook. What type of preference assessment is Olivia using?

Ben is helping his client, Mia. He presents a photo of a washing machine and asks, “What do you use to clean your clothes?” Mia responds, “Washing machine.” After several trials, Ben removes the picture and asks the same question. Mia continues to reply correctly without the visual prompt. What stimulus control transfer procedure is Ben using?

Pat is teaching his client to button a shirt. At first, he provides full physical guidance by placing his hands over the client’s hands to complete the motion. After several successful trials, he fades to lightly touching the client’s wrist, then to tapping the client’s elbow, and finally to providing only a verbal cue before the client buttons independently. This example best exemplifies which of the following?

Ben is helping his client, Mia. He presents a photo of a washing machine and asks, “What do you use to clean your clothes?” Mia responds, “Washing machine.” After several trials, Ben removes the picture and asks the same question. Mia continues to reply correctly without the visual prompt. What stimulus control transfer procedure is Ben using?

Luca, a behavior analyst, is called in to assist with a preschool-aged child who frequently engages in tantrums and aggression at a daycare center. Luca observes the child in various rooms, noting the items and activities the child engages with. How is Luca assessing the child’s preferences?

Lena begins a new case at a center for children with developmental delays. She brings her client, Aiden, into a therapy room filled with books, puzzles, and toys. Lena sits off to the side and observes quietly as Aiden explores the room. She tracks how long he interacts with each item but does not give any directions or remove any materials. What type of preference assessment is Lena using?

Suppose a market basket consists of the following goods: 50 pens 100 notepads 200 paper clips  Also assume that price per unit for these goods is as follows for the years noted, and 2016 is the base year. What is the value of the price index in 2016? Second Exam.png

Hannah is working with her client, Tyler, who scans arrays of items effectively. Hannah needs to quickly identify a hierarchy of potential reinforcers. What type of preference assessment should Hannah use?

Melissa is teaching their client to select clothing when asked. Melissa says, “Show me a shirt,” but the client reaches for the jacket. Melissa blocks the incorrect response, removes the cards, waits a moment, and then re-presents the instruction while immediately prompting the correct response. Melissa then introduces a distractor trial before testing the original instruction again. Melissa is using which type of error correction strategy?