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Many species have two representatives of each chromosome. In such species, the characteristic number of chromosomes is called the ________ number. It is usually symbolized as ____.

The lock on your apartment door is broken, but when you come home, you are not aware that it is broken. You put your key in the door like you always do to unlock it, but your door does not unlock. When you realize you cannot unlock your door, you start engaging in behaviors you have not engaged in before such as putting the key in and attempting to turn it the opposite way, pushing the door in with your shoulder while putting the key in, and attempting to use your credit card get the lock unstuck. This is an example of which of the following secondary effects of extinction? 

You have never done the “Cha-Cha Slide”, but at a wedding, your friends drag you on to the dance floor when the song comes on. You are able to participate in the dance by imitating your friends’ moves. This situation represents an example of a/an:

You are working with a child who is engaging in kicking behavior because it results in them being taken out of the room and away from work demands. You implement a differential reinforcement procedure where the child will no longer be able to escape from work demands for kicking, but will be able to request a break from work by presenting a break card to the teacher. This is an example of: 

A student is running through the school hallways on a daily basis and staff are worried that they are going to fall and hurt themselves. You propose the use of a differential reinforcement procedure where staff members will provide reinforcement for walking behavior, because the two behaviors (walking and running) cannot happen at the same time. This is an example of:

Which of the following schedules of reinforcement (depicted below) yields a “stop-and-go” pattern of responding with post-reinforcement pauses? 

A child is engaging in tantruming behavior consistently and functional assessment results indicate an escape function. Which of the following would be extinction for this scenario? 

A BCBA is planning to implement a chaining procedure to teach an adult client to make a sandwich independently and wants to assess mastery level. The BCBA gives the client the instruction to “make a sandwich” and terminates the assessment at the first step in the task analysis where the client makes an error (and marks the remaining steps in the task analysis as incorrect). The BCBA is using a ____________ method to assess mastery.

A child in your classroom sticks gum to the bottom of their desk. You require the child to scrape the gum off the bottom of their desk and scrape the gum off the bottom of the rest of the desks in the classroom. Assuming a decrease in future behavior, this is an example of: 

A child you are working with wants to get on the iPad to play games, but the iPad is password-protected with a 4-digit passcode. The child needs the passcode to access the games they want to play on the iPad, which establishes the reinforcing value of the passcode. The passcode in this example is likely functioning as a/an: