An increase in the number of sellers of a good will __________________ for that good, ceteris paribus. 

Bobby was taught to choose his clothes for school by independently picking out a shirt and pants or shorts that match. Three months later, his parents report that Bobby is still picking out his own clothes daily, with only occasional mismatches. Which of the following principles does this scenario best exemplify?

Ellie’s father tells her that she and her siblings will get extra allowance if they complete their chores before 10 AM. Ellie starts completing her chores between 9 and 10 AM. This is an example of which of the following?

Fred is non-vocal and living in a group home with no current means of communicating with the others in the home. Fred also has poor dexterity and fine motor skills. He often enjoys using his tablet to play games and can navigate independently through apps on the tablet. Which response form would be best for Fred?

Shane’s mom asks, “What’s your favorite food?” Shane replies, “Pizza.” Shane has demonstrated which verbal operant in his repertoire?

Yasir is at a restaurant and has been dieting so he has not had any sugar in several days. When the server asks, “Would you like dessert?” Yasir replies, “cannoli, please.” What antecedents are evoking Yasir’s response?

Alesha, a behavior analyst, wants to assess Bonnie’s preference of different toys. First, Alesha presents a tablet and a truck and places both items in front of Bonnie. Bonnie reaches for the tablet and begins playing a video. Alesha removes the truck and records the tablet as the item chosen on her data sheet. Alesha then removes the tablet and begins the next trial with two different items. She repeats this process until every combination of toys has been presented to Bonnie. What type of preference assessment method is Alesha using?

Forrest has a strict preference for drinking out of glass water bottles. When teaching Forrest to drink water, the behavior analyst uses a variety of glasses to drink from, including mugs and cups made of glass and plastic. The behavior analyst varies these glasses in their training sessions with Forrest. Which of the following strategies is the behavior analyst using to program for generalization?

Yannick is teaching Martine how to get adults’ attention if she is lost. Yannick teaches her to say “Excuse me, but I need help…” and “Can you help me please?” as well as ways to get people’s attention from a distance, such as shouting “Help!”. Which of the following strategies is Yannick using to program for generalization?

In Ms. Crabtree’s second grade class, anyone who finishes their worksheet with 100% accuracy before the end of math class is allowed to skip the second worksheet and play in the “free time fun time” area in the classroom. This is an example of which of the following?