Domain C • 25% of the RBT Exam
Domain C covers behavior acquisition, which makes up 25% of your RBT exam score and is the largest single domain. This quiz gives you 10 practice questions on reinforcement, discrete trial teaching, naturalistic teaching, prompting, chaining, token economies, generalization, and related procedures.
Behavior acquisition is the largest single domain on the RBT exam at 25% of your score. It covers the evidence-based procedures RBTs use in every session to teach clients new skills. The 3rd Edition Test Content Outline includes 11 tasks here, more than any other domain.
Reinforcement is the foundation of everything in Domain C. The exam tests positive reinforcement, which means adding a preferred stimulus after a behavior to increase it, and negative reinforcement, which means removing an aversive stimulus to increase a behavior. The exam also tests conditioned reinforcers, which are stimuli that gain their reinforcing power through repeated pairing with other reinforcers.
Discrete trial teaching is a structured, therapist-directed teaching format where each trial has a discriminative stimulus, a client response, and a consequence. Trials run in rapid succession with consistent inter-trial intervals. Naturalistic teaching, including incidental teaching and natural environment training, embeds instruction into the client’s natural activities and follows the client’s moment-to-moment motivation.
Task-analyzed chaining teaches the steps of a complex skill in sequence using forward chaining, backward chaining, or total task chaining. Discrimination training teaches the client to respond differently depending on specific stimuli. Stimulus and response prompts with fading provide extra support to increase correct responding and then systematically remove that support to build independence.
Additional tasks in Domain C include generalization procedures, which ensure skills transfer across different settings, people, and stimuli; the distinction between maintenance and acquisition procedures; shaping, which reinforces successive approximations toward a target behavior; and token economies, which use tokens as conditioned reinforcers exchangeable for backup reinforcers.
Prompting questions appear throughout Domain C and are among the most heavily tested concepts on the RBT exam. The 3rd Edition groups these under stimulus and response prompts with fading, covering both how you prompt and how you systematically remove those prompts over time.
The prompt hierarchy runs from most to least intrusive. Full physical prompts involve hand-over-hand guidance. Partial physical prompts provide a lighter touch. Model prompts show the client what to do. Gestural prompts involve pointing or nodding. Positional prompts place items closer to the correct response. Visual prompts use symbols or written cues. Verbal prompts are the least intrusive spoken cues.
Fading methods determine how you systematically remove prompts as the client gains independence. Least-to-most prompting starts with the least intrusive level and adds more support only if the client does not respond within a set wait time, allowing independent attempts first. Errorless approaches start at the most intrusive level and fade to less support over time, minimizing errors during initial acquisition.
Time delay is a fading strategy where you insert a pause between the instruction and any prompt. With constant time delay the pause stays fixed at a set number of seconds. With progressive time delay the pause gradually increases across trials, giving the client more opportunity to respond independently as learning progresses. Stimulus fading gradually changes a physical feature of the stimulus to transfer control to the natural stimulus.
The exam regularly presents scenarios and asks you to identify which teaching procedure is being used. Here is a comparison of the main behavior acquisition formats tested in Domain C.
Discrete trial teaching is structured and therapist-directed. Each trial includes presenting the discriminative stimulus, waiting for the client’s response, and delivering a consequence. Data is recorded trial by trial. This format works well for teaching foundational skills and concepts in a concentrated, efficient way.
Naturalistic teaching follows the client’s lead and motivation. Instruction is embedded in play or daily activities rather than a structured table-top setup. The therapist either captures a naturally occurring learning moment or contrives one within a natural context. Incidental teaching and natural environment training are both forms of naturalistic teaching.
Forward chaining teaches the first step of the task analysis first, then adds subsequent steps one at a time moving forward through the chain. Backward chaining teaches the last step first and works backward, so the client always completes the task and earns the natural reinforcer at the end. Total task chaining runs through all steps every session with prompts provided wherever needed. No single step is isolated.
A key distinction to hold on to: shaping reinforces successive approximations of a single behavior, while chaining teaches a sequence of discrete behaviors linked together from a task analysis. Shaping modifies the form of the behavior while chaining builds a sequence.
Reinforcement is the engine of all behavior acquisition. Every teaching procedure in Domain C depends on using reinforcement correctly. The exam tests both types of reinforcement and the schedules used to deliver it.
Positive reinforcement adds a preferred stimulus following a behavior, which increases the likelihood of that behavior occurring again. Negative reinforcement removes an aversive stimulus following a behavior, which also increases that behavior. Students often confuse negative reinforcement with punishment. Both positive and negative reinforcement increase behavior. The difference is only in whether something is added or removed.
Continuous reinforcement means you reinforce every single correct response. This schedule is used during initial skill acquisition to build the behavior quickly and establish it in the client’s repertoire. Intermittent reinforcement means you reinforce only some correct responses, which is used after the skill is established to maintain behavior and build persistence. Intermittent schedules produce behavior that is more resistant to extinction than continuous reinforcement.
Fixed ratio schedules reinforce after a set number of responses. Variable ratio schedules reinforce after a variable number of responses on average and produce the highest, most consistent response rates and the most resistance to extinction. The exam may describe a reinforcement schedule in a scenario and ask you to identify it by type.
Domain C is 25% of the exam, more than any other domain. Time invested here returns more points than anywhere else. Focus on these priorities.
This quiz covers Domain C only. Keep practicing across all six domains:
When you feel ready, take the free 75-question RBT practice exam to test your full knowledge with a domain-by-domain score at the end.
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