Operant Conditioning
Positive Reinforcement
Positive reinforcement occurs when a response is followed immediately by the presentation of a stimulus that increases the future occurrence of similar responses. The stimulus presented is called a positive reinforcer, or simply a reinforcer.
For positive reinforcement to be effective:
The timing between the response and the stimulus change.
The stimulus conditions present when the response was emitted.
The motivation of the individual must be considered.
Immediacy of reinforcement is important; a delay of even one second will be less effective than a reinforcer delivered immediately.
Positive reinforcement is similar to negative reinforcement in that both lead to an increase in responding.
Negative Reinforcement
Negative reinforcement is an operant contingency where responding increases due to the termination, reduction, or postponement of a stimulus.
It is important to distinguish negative reinforcement from punishment:
Positive and negative do not refer to good or bad but rather the type of stimulus change (presentation versus termination) that follows behavior.
The key difference between positive and negative reinforcement:
Positive reinforcement involves the presentation of a stimulus.
Negative reinforcement involves the termination of a stimulus.
A negative reinforcement contingency involves:
An establishing operation (EO) where escape is reinforcing.
A discriminative stimulus (SD) where a response is more likely to be reinforced.
The response that produces reinforcement.
The termination of the event that served as the EO.
Negative reinforcement can lead to a wide range of adaptive behaviors.
Reinforcer Assessment
Reinforcer assessment is a variety of direct, data-based methods for:
Determining the effects of a stimulus as reinforcement under different conditions.
Comparing the effectiveness of multiple stimuli as reinforcers for a given behavior.
Methods of reinforcer assessments include:
In-the-moment procedures.
Concurrent schedules.
Multiple schedules.
Progressive reinforcement schedules.
The purpose of reinforcer assessment:
To determine if a stimulus is a reinforcer by comparing response rates when the stimulus is presented contingently versus non-contingently.
Stimulus Preference
Stimulus preference assessment is used to determine:
Which stimuli a person selects.
The relative preference value of those stimuli.
Conditions under which those values change.
Whether highly preferred items serve as effective reinforcers.
Methods of stimulus preference assessment:
Single-stimulus.
Paired-stimulus.
Free operant.
Multiple-stimulus with item replacement.
Multiple-stimulus without item replacement.
Note: Preferred stimuli do not always function as reinforcers, and preferences often change.
Reinforcement Schedules
While not defined explicitly, reinforcement schedules mentioned include:
Intermittent schedules: Reinforcement does not follow every response.
Concurrent schedules: Two or more contingencies operate simultaneously for two or more behaviors.
Multiple schedules: Two or more component schedules for a single response, with only one in effect at any time.
Continuous schedules: Reinforcement is provided for each occurrence of the target behavior, especially during initial learning.
Escape Contingencies
An escape contingency is a form of negative reinforcement where a response terminates an ongoing aversive stimulus.
Example: Slouching (aversive EO) is terminated by adjusting posture (response).
Avoidance Contingencies
An avoidance contingency involves a response that prevents or postpones the presentation of a stimulus.
Types:
Discriminated avoidance: Responding in the presence of a signal prevents the onset of an aversive stimulus.
Free-operant avoidance: Responding at any time prevents stimulus presentation.
Positive Punishment
Positive punishment occurs when the presentation of a stimulus immediately following a response decreases the future occurrence of similar responses.
The stimulus change involved is called a positive punisher or simply a punisher.
Examples: Reprimands, response blocking, contingent exercise, overcorrection.
Negative Punishment
Negative punishment occurs when the removal of a stimulus immediately following a response decreases the future occurrence of similar responses.
Examples: Time-out from positive reinforcement, response cost.
Difference between positive and negative punishment:
Positive punishment = Presentation of stimulus.
Negative punishment = Removal of stimulus.
Treatment Guidelines
Positive reinforcement:
Set an easily achieved initial criterion.
Use high-quality reinforcers.
Use varied reinforcers.
Combine response prompts and reinforcement.
Use descriptive praise.
Punishment:
Select effective and appropriate punishers.
Deliver the punisher early in the response sequence.
Use sufficient quality/intensity of punishers.
Use varied punishers to combat habituation.
Time-Out Procedures
Time-out from positive reinforcement:
Involves the withdrawal of the opportunity to earn positive reinforcers or immediate loss of access to reinforcers.
Types:
Nonexclusion time-out: The person remains in the time-in setting but access to reinforcers is removed (e.g., planned ignoring, contingent observation).
Exclusion time-out: The person is physically removed from the time-in setting.
Effectiveness:
The time-in environment must be reinforcing.
Sessions should generally last 2-5 minutes.
Response Cost
Response cost:
The response-contingent loss of a specific number of positive reinforcers.
Decreases the future occurrence of similar responses.
Methods:
Fines against previously earned reinforcers.
Fines against non-contingently provided reinforcers.
Bonus response cost: Additional reinforcers are provided non-contingently for removal when the target behavior occurs.
Ethical Considerations
Ethical considerations for punishment include:
Do no harm.
Use the least restrictive alternative.
Ensure the client’s right to effective treatment.
Concerns with time-out:
Must have informed consent.
Must be safe, humane, and implemented ethically.
Learning objectives
Here’s the information in a numbered list format for clarity:
1. Define Negative Punishment
Negative punishment occurs when a response is followed immediately by the removal of a stimulus, resulting in a decrease in the future occurrence of similar responses.
This is also known as Type II punishment and includes procedures such as time-out from positive reinforcement and response cost.
The key aspect is that the behavior decreases as a result of the removal of a stimulus.
2. Define Nonexclusion Time-Out
Nonexclusion time-out means that the participant remains within the time-in setting, but elements of the setting are changed to reduce reinforcement.
The individual does not leave the time-in space, but their access to reinforcement is reduced.
In this type of time-out, the opportunity to earn positive reinforcers is removed, a specific reinforcer is terminated, and/or ongoing activity is changed.
Nonexclusion time-out tactics include:
Planned ignoring
Contingent observation
Terminating a specific reinforcer
Partition/select space time-out
3. Define Exclusion Time-Out
Exclusion time-out involves the physical separation of the participant from the time-in environment when time-out is implemented.
Two basic tactics:
The participant is removed immediately from the time-in environment.
The time-in environment is removed immediately from the participant.
Examples include using a time-out room or a partition/select space.
4. State the Procedures for Implementing Planned Ignoring
Planned ignoring involves systematically looking away from the individual and refraining from any interaction (physical, verbal, or otherwise) when inappropriate behavior occurs.
The goal is to remove social reinforcement like attention, physical contact, or verbal interaction.
Example: A teacher ignores a student acting out for attention.
5. State the Procedures for Implementing Contingent Observation
In contingent observation, the individual is removed from the reinforcing activity but remains in the time-in setting, where they can observe others engaging in the activity.
The person is still present in the setting but is removed from the group.
Example: A student disrupting group work is directed to sit on the side of the room, where they can watch but not participate.
6. State the Procedures for Implementing Withdrawal of a Specific Positive Reinforcer
This procedure involves terminating access to a specific reinforcer when the target behavior occurs.
Example: A child watching TV starts sucking their thumb, and the TV is turned off until the thumb-sucking stops.
7. State the Procedures for Using a Time-Out Room
A time-out room is a confined, safe, secure, supervised, and continuously monitored area devoid of reinforcing stimuli.
The room should be near the time-in setting and have minimal furnishings.
The person is escorted to the time-out room when a target behavior occurs.
Time-out lasts for a pre-set duration or until exit criteria are met.
8. State the Procedures for Implementing Partition Time-Out
In partition time-out, a space is arranged within the time-in setting (e.g., a cubicle or corner) to serve as the time-out area.
The individual is redirected to this area when the target behavior occurs.
Example: A teacher uses a corner of the classroom as a time-out space to restrict the individual’s view while still keeping them in the room.
9. List the Decisions a Practitioner Must Make Prior to, During, and After a Time-Out Application
Prior to Implementation
Try less aversive techniques and document results.
Define target behaviors and record baseline data.
Decide on the time-out procedure (nonexclusion vs. exclusion), time-out area, and duration.
Set specific criteria for exiting time-out.
Secure parental/guardian approval (if applicable).
Obtain permission from supervisors or administrators.
Communicate the parameters of time-out to all involved parties.
During Implementation
Implement time-out immediately after the target behavior.
Monitor the individual to ensure safety.
Keep time-out sessions brief (2–5 minutes).
After Implementation
Collect data on the target behavior to evaluate the effectiveness of time-out.
Adjust procedures as needed.
Reinforce appropriate behaviors after time-out ends.
10. Define Response Cost
Response cost is the response-contingent loss of a specific number of positive reinforcers, decreasing the future occurrence of similar responses.
Example: A child loses points on a behavior chart for disruptive behavior.
Bonus response cost: Extra reinforcers are provided noncontingently, specifically for removal when the target behavior occurs.
11. List the Undesirable Aspects of Negative Punishment
Emotional and aggressive reactions.
Escape and avoidance behaviors.
Behavioral contrast (e.g., increased problem behavior in other settings).
Overuse of punishment due to its reinforcing effects on the punishing agent.
Collateral reductions in desirable behaviors.
Increased aggression and unpredictability.
12. Define and Discuss Positive and Negative Punishment
Positive Punishment: A response is followed immediately by the presentation of a stimulus, decreasing future behavior.
Example: Reprimands or response blocking.
Negative Punishment: A response is followed immediately by the removal of a stimulus, decreasing future behavior.
Example: Time-out or response cost.
Key Difference: Positive punishment adds a stimulus, while negative punishment removes a stimulus.
13. Define and Discuss Factors Influencing the Effectiveness of Punishment
Immediacy: Deliver punishment immediately after the behavior.
Intensity: The punisher must be of sufficient intensity to suppress the behavior.
Consistency: Punishment is more effective when applied consistently.
Reinforcement of Alternative Behaviors: Reduce reinforcers for problem behavior and provide reinforcement for alternative behaviors.
14. Identify and Explain the Potential Side Effects of Punishment Use
Emotional and aggressive reactions.
Escape and avoidance behaviors.
Behavioral contrast.
Modeling of undesirable behavior by practitioners.
Overuse due to reinforcement of the punisher’s behavior.
15. List Examples of Positive Punishment and Describe Their Respective Procedures
Reprimands: A firm verbal reprimand like "No!" delivered immediately after the occurrence of a behavior can suppress future responding.
Response Blocking: Physically intervening to prevent the completion of a behavior when the learner begins to emit the problem behavior.
Contingent Exercise: Requiring the client to perform a response that is not topographically related to the problem behavior.
Overcorrection:
Restitutional Overcorrection: The learner repairs the damage caused by the problem behavior.
Positive Practice Overcorrection: The learner practices correct performance of the desired behavior.
Response Interruption and Redirection (RIRD): Interrupting a stereotypic behavior at its onset and redirecting the individual to complete high-probability behaviors.
16. Discuss the Guidelines for the Use of Punishment as an Intervention
Select Effective and Appropriate Punishers:
Conduct punisher assessments to identify the least intrusive punisher.
Use punishers of sufficient quality and intensity.
Use a variety of punishers to combat habituation.
Deliver the punisher early in the response sequence if problem behavior consists of a response chain.
Punish each occurrence of the behavior.
Gradually shift to an intermittent schedule of punishment combined with extinction if a continuous schedule is impractical.
Mediate unavoidable response-to-punishment delays.
Supplement punishment with complementary interventions, such as differential reinforcement and extinction.
Watch for and plan for negative side effects.
Record, graph, and evaluate data daily.
Ensure the intervention conforms to:
Local, state, and federal statutes.
Policies and codes of ethical conduct of relevant organizations.
Include procedures for:
Strengthening and teaching alternative behaviors.
Generalization and maintenance of behavior change.
Criteria for eventual termination or reduction of punishment.
Obtain informed consent from the client or legal guardian.
Train staff on:
Administering the punishment procedure.
Ensuring physical safety and humane treatment.
Handling potential side effects.
Provide supervision and feedback to staff.
Conduct periodic reviews of data with a team of stakeholders.
Obtain social validity data from the client, significant others, and staff.
17. Identify and Discuss Ethical Considerations Regarding the Use of Punishment
Right to Safe and Humane Treatment:
Ensure interventions pose no physical, psychological, or social risks.
Treatments should be designed to be effective and delivered in a caring and respectful manner.
Least Restrictive Alternative:
Try less intrusive procedures (e.g., positive reinforcement) before implementing punishment.
The restrictiveness of the treatment should be judged based on its effectiveness.
Right to Effective Treatment:
Withholding punishment procedures proven to be effective for suppressing self-destructive behavior may be unethical.
Policy and Procedural Safeguards:
Agencies must ensure interventions are safe, humane, and ethical.
This includes conforming to statutes, ethical codes, and guidelines.
Avoid Unnecessary Pain and Psychological Harm:
Minimize risks of harm and avoid overly aversive interventions.
18. Explain the Current State of Knowledge Regarding the Use of Punishment as a Treatment Intervention
Punishment is a Natural Part of Learning: It is as fundamental to learning as reinforcement and essential for survival.
Misunderstandings and Misapplications: Punishment is often poorly understood, misapplied, and surrounded by controversy.
Focus on Alternatives:
Shift towards less intrusive reductive procedures like differential reinforcement, stimulus control, and time-out.
Need for Further Research:
More studies are needed to fully understand punishment's mechanisms and variables.
Context Matters: Effectiveness depends on individual, contextual, and environmental variables.
Intervention Packages: Punishment is often used as part of a treatment package rather than in isolation.
Last Resort: Punishment should only be used after less restrictive procedures have failed.
19. Define and Provide Examples of Negative Reinforcement
Definition: Negative reinforcement involves the termination, reduction, or postponement of a stimulus that increases the future occurrence of a response.
Examples:
A student turns off their cell phone to stop receiving stares.
A child cleans their room to stop a parent's nagging.
A person takes medicine to relieve a headache.
An employee asks for help to avoid a perplexing task.
20. Identify and Use Negative Reinforcers
Identify Stimulus Conditions: Determine stimuli occurring before and after the response.
Unconditioned Negative Reinforcers:
Strengthen behavior without prior learning.
Examples: Intense light, noise, or extreme temperatures.
Conditioned Negative Reinforcers:
Strengthen behavior due to prior pairing with other negative reinforcers.
Example: A reminder to clean up may be ineffective unless non-compliance leads to an aversive consequence.
Context Matters: The effectiveness of a negative reinforcer depends on the context and the individual's learning history.
21. Differentiate Between Escape and Avoidance Contingencies
Escape Contingency:
A response terminates an already present aversive stimulus.
Examples:
Taking aspirin to relieve a headache.
Adjusting posture to stop a discomfort-triggering device.
Avoidance Contingency:
A response prevents or postpones the presentation of an aversive stimulus.
Examples:
Studying to avoid failing a test.
Responding to a tone to prevent the onset of a bright light.
22. Identify the Characteristics of Negative Reinforcement
Increases Behavior: Negative reinforcement strengthens the future frequency of a behavior.
Involves Stimulus Termination: It removes or reduces an aversive stimulus.
Can Be Social or Automatic:
Social: Mediated by others (e.g., escaping criticism).
Automatic: Produced by the individual's actions (e.g., turning off an alarm).
23. Use Appropriate Parameters and Schedules of Negative Reinforcement
Parameters:
Intensity of the aversive stimulus.
Delay between the response and stimulus termination.
Schedules:
Continuous Schedule: Most effective for initial learning phases.
Intermittent Schedule: Used for maintaining learned behaviors.
24. State and Plan for the Possible Unwanted Effects and Ethical Issues in the Use of Negative Reinforcement
Unwanted Effects:
Emotional responses and aggression.
Escape and avoidance behaviors.
Competing behaviors that interfere with desired learning.
Ethical Issues:
Avoid using overly aversive antecedents.
Ensure interventions align with ethical guidelines to minimize harm.
Let me know if there’s anything else to add or adjust!
ESSAY TYPE QUESTIONS
1. Classroom Management Using Type II Punishment and Reinforcement
You are a third-grade teacher with 25 students, three of whom exhibit problem behaviors, such as failure to complete assignments and talking during independent work.
Pick a Type II punishment (e.g., response cost or time-out) and pair it with a reinforcement program for the entire class.
Refer to Powell and Powell’s (1982) time-out implementation checklist for guidance.
Hint: See “Using Time-out Effectively” and “Using Response Cost Effectively.”
2. Importance of the Distinction Between Application and Effect in Response Cost
Define response cost and explain how it functions as a Type II punishment.
Discuss why it is critical to make a distinction between the application of response cost and its effect (i.e., whether the removal of a reinforcer reduces the behavior frequency or has no effect).
Hint: See “Response Cost Defined.”
3. Undesirable Aspects of Negative Punishment
List the undesirable aspects of negative punishment.
Describe how to minimize these aspects when implementing negative punishment.
Explain the importance of reinforcing functional alternatives to the problem behavior when using Type II punishment.
Hint: See “Using Time-Out Effectively” and “Response Cost Methods.”
1. Positive Reinforcement and Positive Reinforcer
Briefly explain the terms positive reinforcement and positive reinforcer.
Hint: See "Positive Reinforcement Defined."
2. Conditioned and Unconditioned Reinforcers
Briefly explain the terms conditioned reinforcers and unconditioned reinforcers.
Provide an example of each.
Hint: See "Classifying Reinforcers."
3. Operant Conditioning Example
Bob has just completed his morning workout routine. On the way to taking a shower, he walks past the refrigerator, takes an apple, and eats it.
Describe this example using the operant conditioning paradigm.
Be sure to include motivation in your answer.
Hint: See "Positive Reinforcement Defined."
4. Stimulus Preference Assessment
Briefly describe the pros and cons of the three basic methods for stimulus preference assessments:
Asking the person or significant others.
Observing the individual.
Measuring the person’s responses to trial-based tests.
5. Determining Reinforcer Effectiveness
After identifying possible reinforcers, how can it be determined if the stimulus is a reinforcer?
Briefly describe the assessment procedure you would use and why.
Hint: See "Identifying Potential Reinforcers."
6. Response-Deprivation Procedure
Describe and give an example of the response-deprivation procedure.
Explain your answer in detail.
Hint: See "Classifying Reinforcers."
7. Demonstrating Control in a Graph
Briefly explain whether or not "control" has been demonstrated in the provided graph.
Support your explanation with evidence from the graph.
Control requires an experimental demonstration that the presentation of a stimulus contingent on the occurrence of a target response functions as positive reinforcement.
1. Definition of Negative Reinforcement
Write the definition of negative reinforcement.
Provide an example of negative reinforcement that has not been discussed in class or presented in the textbook.
When giving your example, write it in the form of the diagrams found in the textbook, and be sure to include all four components of the diagram.
Hint: See “Characteristics of Negative Reinforcement.”
2. Difference Between Social and Automatic Negative Reinforcement
Explain the difference between social negative reinforcement and automatic negative reinforcement.
Hint: See “Characteristics of Negative Reinforcement.”
3. Increasing the Effectiveness of Negative Reinforcement
What are four things you can do to increase the effectiveness of negative reinforcement?
Hint: See “Determinants of Negative Reinforcement Effects.”
4. Identifying Negative Reinforcers
What are some stimuli that might serve as negative reinforcers?
Identify at least one unconditioned negative reinforcer and one conditioned negative reinforcer.
Select one of these reinforcers and show how it could be used to teach a behavior. (The behavior can be socially appropriate or socially inappropriate.)
Use the diagramming notation presented in class to illustrate the negative reinforcement contingency.
Hint: See “Characteristics of Negative Reinforcement.”
5. Ethical Considerations in Teaching a Replacement Behavior
You are working with a child with autism who engages in problem behavior to escape completing daily living tasks, such as washing hands before lunch. You would like to teach this student to politely say, “Don’t want to wash hands,” rather than throw tantrums when told to wash his hands.
You set up an instructional program where you will make several hand-washing requests throughout the day to provide the child with opportunities to practice saying, “Don’t want to wash hands.” Each time the child makes this request, you allow him to escape washing his hands.
What ethical issues might arise from such a plan, and how can you plan for and/or decrease these negative effects?
Hint: See “Ethical Issues in Using Negative Reinforcement.”
6. Escape vs. Avoidance Contingencies
What is the key difference between an escape contingency and an avoidance contingency?
Hint: See “Escape and Avoidance Contingencies.”
1. Procedures of Positive and Negative Punishment
Explain the procedures of positive punishment and negative punishment.
Include factors that may influence the effectiveness of the punisher.
Hint: See “Definition and Characteristics of Punishment.”
2. Guidelines for Using Punishment
Identify and discuss the suggested guidelines for the effective use of punishment.
Hint: See “Guidelines for Using Punishment.”
3. Ethical Concerns with Punishment
Discuss the possible side effects of using punishment.
Identify and discuss two ethical concerns associated with punishment.
Provide an example of a situation where these concerns are relevant.
Hint: See “Possible Side Effects and Problems with Punishment” and “Ethical Considerations Regarding the Use of Punishment.”
4. Types of Positive Punishment
Define and give examples of the five types of positive punishment:
Reprimands
Response blocking
Contingent exercise
Overcorrection
Response interruption and redirection
Hint: See “Positive Punishment Interventions.”
5. Research and Field Applications of Punishment
Discuss how most research on punishment is derived from studies conducted over 40 years ago.
Contribute to Horner’s (2002) call for practical applications of punishment research in field settings.
Hint: See “Concluding Perspectives.”
6. Ensuring Ethical and Effective Use of Punishment
Discuss what should be done to ensure punishment-based treatments are used ethically and effectively. Hint: See “Concluding Perspectives.”
SUMMARIES
Definition of Negative Reinforcement
Negative reinforcement involves termination, reduction, or postponement of a stimulus contingent on a response, leading to an increase in the future occurrence of that response.
Components of a negative reinforcement contingency:
Establishing Operation (EO): The context in which escape is reinforcing.
Discriminative Stimulus (SD): Signals the availability of reinforcement.
Response: The behavior that produces the reinforcement.
Termination: The removal of the event serving as the EO.
Characteristics of Negative Reinforcement
Effectiveness is enhanced when:
Stimulus change immediately follows the response.
Magnitude of reinforcement is significant.
Target response consistently produces escape or postponement.
Reinforcement is unavailable for competing responses.
Similarities to Positive Reinforcement:
Both increase responding.
Differ in the type of consequence:
Positive: Stimulus is added.
Negative: Stimulus is removed.
Difference from Punishment:
Negative reinforcement increases responding by removing a stimulus.
Punishment decreases responding by introducing or removing a stimulus.
Escape vs. Avoidance Contingencies
Escape Contingency:
Behavior terminates an ongoing aversive stimulus.
Avoidance Contingency:
Behavior prevents or delays the presentation of an aversive stimulus.
Applications of Negative Reinforcement
Therapeutic Uses: Applied in treating issues like pediatric feeding problems.
Examples in Education:
Error correction strategies or additional work that improves performance may function as negative reinforcement.
Behavioral Interventions:
Teaching socially appropriate replacement behaviors for problem behaviors maintained by negative reinforcement.
Unconditioned vs. Conditioned Negative Reinforcers
Unconditioned Negative Reinforcers: Stimuli whose removal strengthens behavior without prior learning (e.g., pain relief).
Conditioned Negative Reinforcers: Stimuli whose removal strengthens behavior due to prior learning (e.g., escaping criticism).
Ethical Considerations
Plans utilizing negative reinforcement must ensure:
The replacement behavior is socially appropriate.
Negative effects of the intervention are minimized.
The intervention does not inadvertently reinforce maladaptive behaviors.
Definition of Positive Reinforcement
Positive reinforcement occurs when a response is immediately followed by the presentation of a stimulus, which increases the future likelihood of similar responses.
The stimulus responsible for this increase is called a positive reinforcer.
Key Principles of Positive Reinforcement
Immediacy: Reinforcement is most effective when delivered immediately after the behavior.
Delayed Consequences: Effects of delayed consequences are weaker and should not be attributed to reinforcement.
Reinforcement vs. Circular Reasoning: Reinforcement is not circular because the response and consequence can be independently manipulated and analyzed.
Antecedent Stimuli: Stimuli paired with reinforcement become discriminative stimuli (SDs), evoking behavior in the presence of reinforcement opportunities.
Reinforcement Contingencies
Three-term Contingency: Antecedent → Behavior → Consequence.
Four-term Contingency: Includes an establishing operation (EO) that enhances the effectiveness of a reinforcer.
Automaticity and Arbitrariness of Reinforcement
Reinforcement occurs regardless of awareness or understanding of the connection between behavior and consequence.
It strengthens any behavior preceding it, regardless of logical or adaptive connections.
Arbitrary reinforcement explains maladaptive behaviors, superstitions, and idiosyncrasies.
Types of Reinforcers
Unconditioned Reinforcers: Stimuli that function as reinforcers without learning (e.g., food, water).
Conditioned Reinforcers: Previously neutral stimuli that become reinforcing through pairing with unconditioned or conditioned reinforcers.
Generalized Conditioned Reinforcers: Paired with multiple reinforcers, effective without a specific EO (e.g., money).
Premack Principle: High-frequency behaviors can reinforce low-frequency behaviors.
Response-Deprivation Hypothesis: Restricted access to a behavior can make it reinforcing.
Identifying and Assessing Reinforcers
Stimulus Preference Assessment: Determines preferred stimuli and their hierarchical value under different conditions (e.g., single-stimulus, paired-stimulus, free operant).
Reinforcer Assessment: Uses direct data to determine the effectiveness of a stimulus as a reinforcer in specific contexts.
Control Procedures for Positive Reinforcement
Experimental designs (e.g., reversal, NCR, DRO, DRA) help determine the effectiveness of reinforcement.
Control requires demonstrating that reinforcement increases target behavior and that the absence of reinforcement decreases it.
Guidelines for Effective Positive Reinforcement
Set achievable initial criteria for reinforcement.
Use high-quality reinforcers of sufficient magnitude.
Vary reinforcers to maintain motivation.
Prefer direct reinforcement over indirect contingencies.
Combine response prompts with reinforcement.
Reinforce every occurrence of the behavior initially.
Provide contingent attention and specific praise.
Gradually increase the delay between response and reinforcement.
Definition of Punishment
Punishment occurs when a behavior is followed by a stimulus change that results in a decrease in the future frequency of that behavior.
Types of Punishment
Positive Punishment:
Involves the presentation of a stimulus (e.g., an aversive stimulus) immediately after a behavior.
Results in a decrease in the future occurrences of the behavior.
Negative Punishment:
Involves the removal of a stimulus (e.g., a preferred item or condition) immediately after a behavior.
Also results in a decrease in the future occurrences of the behavior.
Characteristics of Punishment
A punisher is any stimulus change that decreases the frequency of a behavior when presented (positive) or removed (negative).
Unconditioned Punishers:
Stimuli that function as punishers without prior learning (e.g., pain or intense discomfort).
Conditioned Punishers:
Stimuli that acquire punishing properties through pairing with unconditioned punishers (e.g., verbal reprimands paired with other consequences).
Key Points
Both types of punishment aim to reduce behavior frequency.
Aversive events are often associated with punishment but should not define it.
Effective punishment requires that the behavior immediately decreases in frequency following the application of a stimulus change.