Applied Behavior Analysis Technician (ABAT) Practice Test

Which of the following best describes a fixed ratio schedule?

1. Reinforcement is given at unpredictable intervals

2. Reinforcement is delivered after a specific number of responses

3. Reinforcement is provided after a defined time period

4. Reinforcement is given continuously for all behaviors

The correct answer is: Reinforcement is delivered after a specific number of responses

A fixed ratio schedule is characterized by the delivery of reinforcement after a specific, predetermined number of responses has been made. This means that the rewards or reinforcements are only provided once the individual has completed a designated amount of work or actions. For example, in a fixed ratio schedule of 5, reinforcement would be given after every fifth response. This type of scheduling effectively encourages the learner to increase their rate of responding, as they know exactly how many responses are required to receive reinforcement. The other options describe different types of reinforcement schedules. Unpredictable intervals correspond to variable interval schedules, where reinforcement is provided after varying amounts of time. Fixed time periods describe fixed interval schedules, which reinforce behavior after certain durations irrespective of the number of responses. Continuous reinforcement means that every occurrence of the desired behavior is reinforced, which creates a different dynamic in behavior shaping. Each of these schedules influences behavior in distinct ways, with the fixed ratio specifically motivating the learner through clear, measurable criteria for earning rewards.