Q: Which formula would you use to calculate the percentage of engagement with a stimulus in a single stimulus assessment?

$$\text{Percentage} = \frac{\text{Number of times engaged}}{\text{Total presentations}} \times 100$$

Question 1

Which of the following best describes a 'free operant' stimulus preference assessment?

Accepted Answer

The learner is given free access to multiple stimuli, and the observer records how much time is spent with each.

Question 2

A teacher wants to determine which snack will most likely increase a student's participation in class. She presents the student with a choice between tacos, berries, and a toy car before a task. Which method is she using?

Accepted Answer

Pre-task choice

Question 3

In a paired stimulus (forced choice) assessment, which of the following is true?

Accepted Answer

Two stimuli are presented at a time, and the learner is prompted to pick one.

Question 4

Which of the following statements about reinforcers is supported by Skinner's (1953) view?

Accepted Answer

The only way to determine if a stimulus is a reinforcer is to test its effect on future behavior.

Question 5

A therapist alternates between two reinforcement schedules for a single behavior, using a visual cue to signal which schedule is in effect. What type of reinforcer assessment is this?

Accepted Answer

Multiple schedule reinforcer assessment

Question 6

During a reinforcer assessment, a practitioner increases the number of required responses for a reward until the learner stops responding. What is this method called?

Accepted Answer

Progressive-ratio schedule

Question 7

Which of the following is a key difference between a stimulus preference assessment and a reinforcer assessment?

Accepted Answer

Preference assessments identify potential reinforcers, while reinforcer assessments test whether a stimulus actually increases behavior.

Question 8

A child is given access to a playground, toy trucks, and berries. The observer records the time spent with each. Which type of assessment is being conducted?

Accepted Answer

Free operant preference assessment

Question 9

Which of the following best illustrates a control procedure for positive reinforcement?

Accepted Answer

Comparing response rates when a potential reinforcer is contingent versus non-contingent on behavior.

Question 10

A teacher wants to know if a new toy will increase a student's completion of math problems. She gives the toy immediately after each completed problem and tracks the number of problems completed over time. What is this an example of?

Accepted Answer

In-the-moment reinforcer analysis

Question 11

Which formula would you use to calculate the percentage of engagement with a stimulus in a single stimulus assessment?

Accepted Answer

$$	ext{Percentage} = \frac{	ext{Number of times engaged}}{	ext{Total presentations}} 	imes 100$$

Question 12

In a concurrent schedules reinforcer assessment, which outcome indicates the more effective reinforcer?

Accepted Answer

The reinforcer that the learner allocates a greater proportion of their responding to.

Question 13

Which of the following is NOT a method of stimulus preference assessment?

Accepted Answer

Multiple schedule assessment

Question 14

A therapist presents three toys to a child and asks, 'Which one do you want the most?' After the child chooses, the selected toy is removed and the process is repeated. What is this method called?

Accepted Answer

Multiple stimulus without replacement

Question 15

Which of the following best describes the purpose of a reinforcer assessment?

Accepted Answer

To determine if a stimulus increases the future frequency of a target behavior.

Question 16

A parent wants to know if their child will work harder for tacos or berries. They set up two separate tasks, each with a different food as a reward, and measure how many times the child completes each task. What type of assessment is this?

Accepted Answer

Concurrent schedules reinforcer assessment

Question 17

Which of the following is a limitation of using only preference assessments to identify reinforcers?

Accepted Answer

Preferred items may not function as reinforcers in practice.

Question 18

Which of the following is an example of a trial-based stimulus preference assessment?

Accepted Answer

Presenting one toy at a time and recording engagement.

Question 19

A teacher uses a fixed ratio schedule, gradually increasing the number of correct responses required for a reward. The student stops responding after the requirement reaches five. What is the term for the point at which responding ceases?

Accepted Answer

Breaking point

Question 20

Which of the following best describes the process of a 'single stimulus' preference assessment?

Accepted Answer

Presenting one stimulus at a time and recording the learner's reaction or engagement.

Identifying Reinforcers: Methods and Assessments in Behavioral Psychology

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