Introduction to Schedules of Reinforcement
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Questions and Answers

What is a schedule of reinforcement?

A program or rule that determines which occurrence is followed by a reinforcer.

What are the two main types of reinforcement schedules?

  • Positive and Negative
  • Fixed and Variable
  • Ratio and Interval (correct)
  • Continuous and Intermittent

What is the term for a schedule where every response is reinforced?

  • Intermittent Reinforcement
  • Partial Reinforcement
  • Continuous Reinforcement (correct)
  • Variable Reinforcement

What is the primary function of a cumulative recorder?

<p>It continuously records the behavior of an individual or animal over time.</p> Signup and view all the answers

Post-reinforcement pauses are more common in fixed-ratio schedules than in variable-ratio schedules.

<p>True (A)</p> Signup and view all the answers

What is the primary difference between interval and ratio schedules?

<p>Interval schedules are based on the amount of time that has passed since the last reinforcement, whereas ratio schedules are based on the number of responses made.</p> Signup and view all the answers

Fixed-interval schedules typically produce a scalloped pattern on a cumulative record.

<p>True (A)</p> Signup and view all the answers

What is the main characteristic of a concurrent schedule?

<p>It allows for the continuous measurement of choice because the participant is free to change back and forth between the response alternatives at any time.</p> Signup and view all the answers

Which of the following is a measure of relative rate of responding in a concurrent schedule?

<p>BL / (BL + BR) (B)</p> Signup and view all the answers

What is the primary advantage of concurrent schedules for research?

<p>They allow for the study of choice behavior by providing multiple response options with different reinforcement contingencies.</p> Signup and view all the answers

What is the main function of the cumulative recorder?

<p>It provides a visual representation of the frequency and patterns of a particular behavior over time.</p> Signup and view all the answers

Describe the relationship between inter-response time (IRT) and reinforcement schedules.

<p>Inter-response time refers to the duration between successive responses. In ratio schedules, shorter IRTs (more responses) are often correlated with higher reinforcement rates. This means that a faster rate of responding can lead to more rewards in a ratio schedule.</p> Signup and view all the answers

What is a key characteristic of variable-ratio schedules?

<p>They produce a steady rate of responding without predictable pauses because the number of responses required for reinforcement is unpredictable.</p> Signup and view all the answers

What are the main types of schedules of reinforcement?

<p>All of the above (D)</p> Signup and view all the answers

What does a fixed-interval schedule (FI) mean?

<p>The amount of time that needs to pass before a behavior is reinforced is constant from one trial to the next.</p> Signup and view all the answers

What does a variable-ratio schedule (VR) mean?

<p>The number of responses required to obtain a reinforcement varies from one trial to the next.</p> Signup and view all the answers

A post-reinforcement pause occurs after reinforcement is delivered on a fixed-ratio schedule.

<p>True (A)</p> Signup and view all the answers

What is a concurrent schedule?

<p>A schedule that allows for more than one response option or reinforcer.</p> Signup and view all the answers

What is the primary difference between interval and ratio schedules of reinforcement?

<p>Interval schedules are based on time, while ratio schedules are based on the number of responses.</p> Signup and view all the answers

What is the benefit of using a cumulative recorder to chart behavior?

<p>It shows the total number of responses over time, providing insight into rates and patterns of behavior.</p> Signup and view all the answers

What is the "fixed-interval scallop"?

<p>An increase in response rate that occurs towards the end of a fixed-interval timeframe.</p> Signup and view all the answers

What is a "ratio strain"?

<p>The tendency of an organism to pause or reduce responding when a ratio requirement is suddenly increased.</p> Signup and view all the answers

A fixed-ratio schedule delivers reinforcement after a set number of responses, while a variable-ratio schedule delivers reinforcement after a random number of responses.

<p>True (A)</p> Signup and view all the answers

In a continuous reinforcement schedule, every response is reinforced.

<p>True (A)</p> Signup and view all the answers

What does CRF stand for?

<p>Continuous Reinforcement</p> Signup and view all the answers

What is the difference between a partial/intermittent reinforcement schedule and a continuous reinforcement schedule?

<p>All of the above. (D)</p> Signup and view all the answers

What is the name of the schedule of reinforcement where reinforcement is delivered after a fixed, predetermined number of responses?

<p>Fixed-Ratio Schedule</p> Signup and view all the answers

In a fixed-ratio schedule, what is the term used to indicate the total number of responses that have occurred up to a specific point in time?

<p>Cumulative Record</p> Signup and view all the answers

The slope of a cumulative record in a fixed-ratio schedule reflects the rate of responding.

<p>True (A)</p> Signup and view all the answers

What is a post-reinforcement pause?

<p>A period of no responding that typically occurs immediately after reinforcement in a fixed-ratio schedule.</p> Signup and view all the answers

What does the term 'ratio run' refer to in the context of reinforcement schedules?

<p>A period of high and consistent responding that occurs between reinforcement deliveries during a fixed-ratio schedule.</p> Signup and view all the answers

What is a variable-ratio schedule?

<p>A schedule of reinforcement where the number of responses needed to obtain a reinforcer varies each time.</p> Signup and view all the answers

Variable-ratio schedules are more likely to generate predictable pauses in response rates than fixed-ratio schedules.

<p>False (B)</p> Signup and view all the answers

What is a fixed-interval schedule?

<p>A schedule of reinforcement where reinforcement is delivered for the first response after a specific amount of time has elapsed.</p> Signup and view all the answers

What is a fixed-interval scallop?

<p>A gradual increase in response rate as the time for reinforcement approaches in a fixed-interval schedule, creating a characteristic curved pattern on a cumulative record.</p> Signup and view all the answers

The fixed-interval scallop indicates that the organism has learned to anticipate the time of reinforcement.

<p>True (A)</p> Signup and view all the answers

What is a variable-interval schedule?

<p>A schedule of reinforcement where the amount of time that must elapse before a response is reinforced varies between trials.</p> Signup and view all the answers

Variable-interval schedules tend to produce high and consistent rates of responding.

<p>True (A)</p> Signup and view all the answers

What is the IRT?

<p>Inter-Response Time, the time interval between successive responses.</p> Signup and view all the answers

What is the Feedback Function?

<p>The relationship between reinforcement and responding behavior calculated over an extended period of time.</p> Signup and view all the answers

Concurrent schedules make it possible to study choice behavior in experimental settings.

<p>True (A)</p> Signup and view all the answers

If an organism is responding to a 'left key' in a concurrent schedule, how is its relative rate of responding calculated?

<p>By dividing the number of responses made to the left key by the total number of responses made to both the left and right keys.</p> Signup and view all the answers

The relative rate of reinforcement earned for each response alternative can be calculated comparably to the relative rate of response.

<p>True (A)</p> Signup and view all the answers

Schedules of reinforcement are an important tool in understanding how learned behavior is acquired and maintained.

<p>True (A)</p> Signup and view all the answers

Which of the following factors can determine which occurrence of the instrumental response is reinforced?

<p>Both A and B (C)</p> Signup and view all the answers

What is the term for a schedule of reinforcement where every response results in delivery of the reinforcer?

<p>Continuous reinforcement (CRF)</p> Signup and view all the answers

What is the term used for fixed ratio schedule where 10 responses will get a reinforcer?

<p>FR10</p> Signup and view all the answers

What is the term for a pause in responding that typically occurs just after reinforcement on a fixed ratio schedule?

<p>Post-reinforcement pause</p> Signup and view all the answers

What is the term for a schedule of reinforcement where the time that has to pass before a response is reinforced is constant from one trial to the next?

<p>Fixed-Interval Schedule (FI)</p> Signup and view all the answers

What is the term for a schedule of reinforcement where the time required to set up the reinforcer varies from one trial to the next?

<p>Variable Interval Schedule (VI)</p> Signup and view all the answers

Which schedule, VR or VI, is most likely to result in predictable pauses in response rates?

<p>VI (A)</p> Signup and view all the answers

What is the term used for a schedule of reinforcement that involves more than one response option or reinforcer, allowing the subject to change between them at any time?

<p>Concurrent Schedule</p> Signup and view all the answers

What is the term for the interval between successive responses in a schedule of reinforcement?

<p>Inter-Response Time (IRT)</p> Signup and view all the answers

What is the term for the overall outcome of a subject's responses over an extended period of time, reflecting how often reinforcement is received?

<p>Feedback Function</p> Signup and view all the answers

What is the definition of the "Schedule of Reinforcement"?

<p>A program or rule that determines which occurrence is followed by a reinforcer.</p> Signup and view all the answers

What are the four subtypes of reinforcement schedules?

<p>Fixed Interval, Variable Interval, Fixed Ratio, Variable Ratio (A), Fixed Interval, Variable Interval, Fixed Ratio, Variable Ratio (D)</p> Signup and view all the answers

A schedule where reinforcement is delivered after a ______ number of responses is called a Fixed-Ratio schedule.

<p>fixed</p> Signup and view all the answers

In a Fixed-Interval schedule, the time interval between reinforcement delivery is variable.

<p>False (B)</p> Signup and view all the answers

What does the term "Cumulative Record" refer to?

<p>The total number of responses that have occurred up to a particular point in time.</p> Signup and view all the answers

What does the term "Post-Reinforcement Pause" refer to?

<p>A period of time immediately following reinforcement delivery where the participant does not respond.</p> Signup and view all the answers

What does the term "Ratio Run" refer to?

<p>A high and steady rate of responding that completes each ratio requirement.</p> Signup and view all the answers

A Variable-Ratio schedule means that the number of responses needed for reinforcement is constant across trials.

<p>False (B)</p> Signup and view all the answers

Which reinforcement schedule is expected to produce a steadier rate of responding, without predictable pauses? (Choose one)

<p>Variable-Ratio (C)</p> Signup and view all the answers

Fixed-Interval schedules are more likely to generate a steep increase in response rates just before the reinforcement is delivered compared to Variable-Interval schedules.

<p>True (A)</p> Signup and view all the answers

What is the term for the interval between successive responses in a reinforcement schedule?

<p>Inter-Response Time (IRT).</p> Signup and view all the answers

Inter-Response Times are most frequent when the reinforcement schedules are of a fixed ratio.

<p>False (B)</p> Signup and view all the answers

What is the term for the overall rate of reinforcement delivery in a specific experimental session?

<p>Feedback Function.</p> Signup and view all the answers

Concurrent schedules are characterized by the participant responding back and forth between multiple different response options to obtain a reinforcer.

<p>True (A)</p> Signup and view all the answers

What is the name of the measure that evaluates the relative rate of responding to a particular response option in a concurrent schedule?

<p>Relative Rate of Responding.</p> Signup and view all the answers

Relative Rates of Responding can be calculated for each response alternative in a concurrent schedule.

<p>True (A)</p> Signup and view all the answers

What is the main factor that influences how an instrumental response is learned or maintained by reinforcement?

<p>The schedule of reinforcement applied (D)</p> Signup and view all the answers

In simple reinforcement schedules, what single factor can determine which response is reinforced?

<p>The number of responses completed (D)</p> Signup and view all the answers

When discussing reinforcement schedules, which characteristic is not generally considered a single determining factor for reinforcement?

<p>Environmental condition during response (D)</p> Signup and view all the answers

How does a schedule of reinforcement primarily affect instrumental responses?

<p>By determining which occurrences are followed by reinforcement (C)</p> Signup and view all the answers

Which aspect of reinforcement schedules can most significantly modify the way an instrumental response is reinforced?

<p>The consistency of the reinforcement schedule (C)</p> Signup and view all the answers

What type of reinforcement schedule delivers a reinforcer after a specific number of responses?

<p>Fixed-Ratio Schedule (C)</p> Signup and view all the answers

Which of the following schedules likely produces high rates of responding without predictable pauses?

<p>Variable-Ratio Schedule (C)</p> Signup and view all the answers

What term describes a schedule where reinforcement occurs after varying time intervals?

<p>Variable-Interval Schedule (A)</p> Signup and view all the answers

Which schedule requires a consistent number of responses for reinforcement but allows for some variation in timing?

<p>Variable-Ratio Schedule (B)</p> Signup and view all the answers

Continuous reinforcement is characterized as which type of schedule?

<p>Continuous Reinforcement Schedule (D)</p> Signup and view all the answers

What characterizes a variable-ratio (VR) schedule?

<p>Responses required for reinforcement are not predictable. (B)</p> Signup and view all the answers

What is the likely outcome when the ratio requirement is suddenly increased in a fixed-ratio schedule?

<p>Animals may pause periodically before completing the ratio requirement. (B)</p> Signup and view all the answers

What characterizes a fixed-interval schedule in terms of response rate?

<p>Increased response rates before the end of each interval (A)</p> Signup and view all the answers

Which of the following best describes a post-reinforcement pause?

<p>A period of no responding immediately after reinforcement on a fixed-ratio schedule. (B)</p> Signup and view all the answers

What does the slope of a cumulative record indicate in a fixed-ratio schedule?

<p>The overall rate of responding over a period. (C)</p> Signup and view all the answers

Which statement accurately describes a variable-interval schedule?

<p>The time required for reinforcement varies and is unpredictable (C)</p> Signup and view all the answers

What is a common feature of both fixed-ratio and fixed-interval schedules?

<p>They tend to produce post-reinforcement pauses (A)</p> Signup and view all the answers

What is one crucial difference between fixed-ratio (FR) and variable-ratio (VR) schedules?

<p>FR schedules provide reinforcement after a predictable number of responses, while VR schedules do not. (D)</p> Signup and view all the answers

What effect does a variable-ratio schedule have on response rates compared to fixed-ratio schedules?

<p>Steady and stable rates without predictable pauses (A)</p> Signup and view all the answers

How does the timing of reinforcement delivery in an interval schedule affect behavior?

<p>It influences the accuracy of the participant in keeping track of time (A)</p> Signup and view all the answers

What is the primary role of inter-response time (IRT) in reinforcement schedules?

<p>It affects the rate of reinforcement received based on response intervals. (B)</p> Signup and view all the answers

Which of the following accurately describes concurrent schedules?

<p>They enable subjects to switch freely between multiple response options. (A)</p> Signup and view all the answers

How can the relative rate of reinforcement be calculated for response alternatives?

<p>By calculating the ratio of reinforcement received for each alternative. (A)</p> Signup and view all the answers

What does the feedback function assess in an experimental session?

<p>The relationship between response rates and the overall reinforcement received. (D)</p> Signup and view all the answers

What is a characteristic effect observed in response rates when using ratio schedules?

<p>Higher response rates are typically followed by longer pauses. (C)</p> Signup and view all the answers

What is the main factor that determines which occurrence of the instrumental response is followed by reinforcement in simple reinforcement schedules?

<p>The number of responses or time elapsed (B)</p> Signup and view all the answers

How does the structure of a fixed-ratio schedule primarily influence behavioral responses?

<p>By creating consistent pauses in responding after reinforcement (B)</p> Signup and view all the answers

Which of the following correctly describes what influences the learning and maintenance of instrumental responses in schedules of reinforcement?

<p>The rule determining reinforcement delivery (D)</p> Signup and view all the answers

Which aspect is NOT typically associated with the characteristics of simple schedules of reinforcement?

<p>Complex interactions between multiple variables (D)</p> Signup and view all the answers

In what way does the timing of reinforcement affect learning in simple reinforcement schedules?

<p>It influences both the rate of responding and post-reinforcement behavior. (A)</p> Signup and view all the answers

What characteristic is unique to ratio schedules of reinforcement compared to interval schedules?

<p>Reinforcement depends on the number of responses made. (D)</p> Signup and view all the answers

Which description best fits continuous reinforcement (CRF)?

<p>Every response results in delivery of the reinforcer. (D)</p> Signup and view all the answers

What occurs during a post-reinforcement pause in fixed-ratio schedules?

<p>No responses occur for a brief duration following reinforcement. (D)</p> Signup and view all the answers

What does a variable-ratio schedule primarily influence in a subject's behavior?

<p>It leads to high rates of responding without predictable pauses. (D)</p> Signup and view all the answers

Which of the following is a distinguishing feature of fixed-interval (FI) schedules compared to fixed-ratio (FR) schedules?

<p>The timing of responses is critical for receiving reinforcement. (B)</p> Signup and view all the answers

What effect does a sudden increase in ratio requirement have on responding behavior?

<p>It is likely to cause the animal to pause periodically before completing the requirement. (D)</p> Signup and view all the answers

Which of the following best describes the implications of a variable-ratio schedule compared to a fixed-ratio schedule in terms of response predictability?

<p>Variable-ratio schedules tend to minimize predictable pauses in responding. (C)</p> Signup and view all the answers

How is the slope of a cumulative record indicative of the rate of responding?

<p>A steeper slope reflects a higher rate of responding. (B)</p> Signup and view all the answers

What is a characteristic behavior immediately following reinforcement in a fixed-ratio schedule?

<p>An extended post-reinforcement pause in responding. (C)</p> Signup and view all the answers

What does a Fixed-Ratio 10 (FR10) schedule imply regarding reinforcement?

<p>A reinforcer is delivered for every 10th response. (A)</p> Signup and view all the answers

How does a fixed-interval schedule influence the pacing of responses before reinforcement?

<p>It causes participants to respond more frequently as the end of the interval approaches. (A)</p> Signup and view all the answers

What characterizes the response rate in variable-interval schedules compared to fixed-interval schedules?

<p>Variable-interval schedules maintain steady and stable rates without predictable pauses. (A)</p> Signup and view all the answers

In terms of reinforcement delivery, what key difference exists between fixed and variable interval schedules?

<p>Reinforcement occurs at predictable times in fixed-interval schedules only. (B)</p> Signup and view all the answers

What is a consequence of the fixed-interval scallop on cumulative records?

<p>It indicates an increase in response rates just before the scheduled reinforcement delivery. (C)</p> Signup and view all the answers

How does a variable ratio schedule differ from a fixed ratio schedule in terms of reinforcement delivery?

<p>Variable ratio schedules provide reinforcement after a random number of responses, while fixed ratio schedules do so after a set number. (C)</p> Signup and view all the answers

What best explains the relationship between inter-response times and reinforcement in a schedule?

<p>Shorter inter-response times are associated with more vigorous instrumental behavior. (B)</p> Signup and view all the answers

In a concurrent schedule, which calculation reflects the relative rate of responding for a 'right key'?

<p>BR / (BL + BR) (D)</p> Signup and view all the answers

What characterizes a feedback function in the context of reinforcement schedules?

<p>It is concerned with the total amount of reinforcement delivered over time. (B)</p> Signup and view all the answers

Which statement accurately describes concurrent schedules in behavioral experiments?

<p>They allow subjects to switch between different response alternatives freely. (D)</p> Signup and view all the answers

Which of the following best defines the term 'inter-response time'?

<p>The time interval between successive responses made by an organism. (A)</p> Signup and view all the answers

Flashcards

Schedule of Reinforcement

A program or rule that decides when a behavior is followed by a reinforcer.

Interval Schedule

Reinforcement depends on the time elapsed since the last reinforcement.

Ratio Schedule

Reinforcement depends on the number of responses.

Fixed Interval (FI)

Reinforcement after a constant time interval.

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Variable Interval (VI)

Reinforcement after a varying time interval.

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Fixed Ratio (FR)

Reinforcement after a set number of responses.

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Variable Ratio (VR)

Reinforcement after a varying number of responses.

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Continuous Reinforcement (CRF)

Reinforcement after every response.

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Partial/Intermittent Reinforcement

Reinforcement not given after every response.

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Post-Reinforcement Pause

A temporary decrease in responding immediately after reinforcement (often seen in fixed ratio schedules).

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Ratio Run

High and steady responding before reinforcement in ratio schedules.

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Ratio Strain

Decreased responding when the ratio requirement suddenly increases (in ratio schedules).

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Cumulative Record

Graphical representation of the total number of responses over time.

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Concurrent Schedule

Two or more response options/reinforcers available.

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Inter-Response Time (IRT)

Time between successive responses.

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Choice Behavior

Study of how individuals choose between different response options.

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Relative Rate of Responding

Proportion of responses made on one option compared to another.

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Feedback Function

Response rates calculated over an extended time or session. Used to gauge schedule reinforcement effectiveness.

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What is a schedule of reinforcement?

A rule that determines when a behavior is followed by a reinforcer. It influences how a behavior is learned and maintained.

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What are the two main types of schedules?

Interval schedules and ratio schedules.

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What is an interval schedule?

Reinforcement depends on the amount of time that has passed since the last reinforcement.

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What is a ratio schedule?

Reinforcement depends on the number of responses made.

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What is a fixed interval (FI) schedule?

Reinforcement is delivered after a constant amount of time has passed.

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What is a variable interval (VI) schedule?

Reinforcement is delivered after an unpredictable amount of time has passed.

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What is a fixed ratio (FR) schedule?

Reinforcement is delivered after a fixed number of responses.

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What is a variable ratio (VR) schedule?

Reinforcement is delivered after a variable number of responses.

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What is continuous reinforcement (CRF)?

Every response results in delivery of the reinforcer.

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What is partial reinforcement?

Responses are reinforced only sometimes.

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What is a post-reinforcement pause?

A brief pause in responding that immediately follows reinforcement, often seen in fixed ratio schedules.

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What is a ratio run?

High and steady responding before reinforcement in ratio schedules.

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What is ratio strain?

A decrease in responding when the ratio requirement suddenly increases.

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What is a cumulative record?

A graph that displays the total number of responses made over time.

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What is a concurrent schedule?

A schedule of reinforcement where two or more response options are available, each with its own schedule of reinforcement.

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What is inter-response time (IRT)?

The time between successive responses.

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What is choice behavior?

The study of how individuals choose between different response options when faced with a concurrent schedule.

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What is relative rate of responding?

The proportion of responses made on one option compared to another.

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What is a feedback function?

The relationship between response rates and the reinforcement schedule.

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How does a fixed-ratio schedule affect responding?

FR schedules typically produce high rates of responding, followed by a post-reinforcement pause.

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How does a variable-ratio schedule affect responding?

VR schedules produce consistent and high rates of responding, without predictable pauses.

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How does a fixed-interval schedule affect responding?

FI schedules produce a scalloped pattern of responding, with increasing response rates as the time for reinforcement approaches.

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How does a variable-interval schedule affect responding?

VI schedules produce steady rates of responding, without predictable pauses.

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What is the difference between interval and ratio schedules?

Interval schedules base reinforcement on time, while ratio schedules base it on the number of responses.

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Which type of schedule typically motivates the most vigorous responding?

Variable Ratio (VR) schedules. They produce high and consistent rates of responding due to their unpredictable rewarding nature.

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What is the importance of studying choice behavior?

It helps us understand how organisms make decisions when faced with multiple options, providing insights into preference, motivation, and decision-making processes.

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How can we measure choice behavior?

By observing the relative rates of responding for each option, we can measure the relative preference individuals have for each choice.

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What does the relative rate of reinforcement tell us?

It reflects the proportion of rewards obtained for each response option, providing insights into the overall value of each choice.

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What is a cumulative record used for?

A cumulative record is used to track the total number of responses over time, helping researchers to see patterns and understand how the reinforcement schedule is impacting behavior.

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What does it mean if a cumulative record shows a steep slope?

A steep slope in a cumulative record indicates a high rate of responding. The animal is working quickly to earn the reward.

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What is the difference between a FR and a VR schedule?

Both are ratio schedules where reinforcement depends on the number of responses. FR requires a fixed number of responses, while VR requires a varying number of responses.

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Which type of schedule is more likely to produce a post-reinforcement pause?

A fixed-ratio schedule (FR) is more likely to produce a post-reinforcement pause, since the animal knows that the next reward is a fixed number of responses away.

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What is the relationship between IRT and reinforcement schedules?

The inter-response time (IRT) is the time between successive responses. Different reinforcement schedules can influence the IRT. For example, VR schedules tend to have faster IRTs than FR schedules.

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What is the main idea behind studying choice behavior?

Studying choice behavior helps us understand how individuals make decisions when faced with multiple options, which is crucial for understanding motivation, preferences, and the decision-making processes.

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Why is it important to measure the relative rate of responding?

It allows us to understand the relative preference for one option over another, based on the frequency of choosing that option.

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What is an example of a concurrent schedule?

A rat is placed in a chamber with two levers. Pressing one lever yields a food pellet on a VI schedule, while pressing the other lever yields a food pellet on a VR schedule.

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What are some factors that might influence choice behavior?

Various factors can influence choice behavior, such as the value of the reinforcer, the effort required to obtain it, and the probability of obtaining it.

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How does a variable ratio schedule lead to consistent responding?

VR schedules lead to consistent responding because the reward is unpredictable, making the individuals keep working to potentially earn a reward at any time. This unpredictability motivates them to keep performing the desired actions.

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Why are schedules important?

Schedules influence how a behavior is learned and kept going.

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What are the two main schedule types?

Interval and Ratio schedules.

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What does a steep slope in a cumulative record mean?

A lot of behaviors are happening over the time.

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What is the difference between a fixed ratio and a variable ratio?

Fixed ratio is a set number, variable ratio changes.

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Which schedule is more likely to cause a post-reinforcement pause?

Fixed ratio, because you know when the next reward is coming.

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How does a variable ratio affect IRT?

It makes the time between behaviors go down, because you never know when reward is coming.

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Why is studying choice behavior important?

It shows us how people make decisions when many options exist.

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What factors influence choice behavior?

The value of the reward, how much effort it takes, and how likely you are to get it.

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How does a variable ratio keep people working?

It's unpredictable, so you keep trying hoping for a reward.

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What is the main idea behind studying schedules of reinforcement?

To understand how rewards affect how we act.

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Which schedule is likely to cause a post-reinforcement pause?

Fixed Ratio (FR) because you know when the next reward is coming.

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What are some factors that influence choice behavior?

The value of the reward, how much effort it takes, and how likely you are to get it.

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How does a VR schedule keep people working?

It's unpredictable, so you keep trying, hoping for a reward.

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What is the difference between an interval schedule and a ratio schedule?

Interval schedules are based on time, ratio schedules are based on the number of behaviors.

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What are some examples of schedules of reinforcement?

Getting a reward after every correct answer on a test (CRF), getting a reward after a certain amount of time (FI), getting a reward after a certain number of chores (FR), getting a reward after a different amount of time each time (VI), getting a reward after a different amount of chores each time (VR).

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What is Continuous Reinforcement?

Every correct response is rewarded. This is a type of ratio schedule.

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What is a variable ratio schedule?

The number of responses required for a reward is unpredictable. This schedule is the most effective in making behaviors stick.

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What is a fixed interval schedule?

The reward is given after a specific amount of time.

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What are schedules of reinforcement?

Rules that decide when a behavior is followed by a reward. They influence how a behavior is learned and repeated.

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How do variable ratio schedules affect behavior?

They make behavior happen frequently and consistently because the reward is unpredictable, keeping the person motivated to try.

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Continuous Reinforcement

Every response is rewarded, meaning a reinforcer is always given after a behavior occurs.

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Partial Reinforcement

Responses are only occasionally rewarded, meaning a reinforcer follows a behavior sometimes, but not always.

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Fixed Ratio Schedule

A set number of responses are required before receiving a reward.

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Variable Ratio Schedule

A different, unpredictable number of responses are needed each time to receive a reward.

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What is a Fixed-Interval Schedule (FI)?

A reinforcement schedule where the reward is given after a specific amount of time has passed since the last reward.

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What is a Variable-Interval Schedule (VI)?

A reinforcement schedule where the reward is given after a variable amount of time has passed since the last reward.

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What is the Fixed-Interval Scallop?

The pattern of responding on a fixed-interval schedule where the response rate increases as the time for reward gets closer.

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What is the difference between Fixed-Ratio and Variable-Ratio Schedules?

Fixed-ratio schedules deliver rewards after a set number of responses, while variable-ratio schedules deliver rewards after an unpredictable number of responses.

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How to measure choice behavior?

By observing the relative rate of responding for each alternative, we can calculate the proportion of times one option is preferred over another.

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Fixed Ratio Schedule (FR)

A set number of responses must be made before a reward is given. For example, FR10 means 10 responses are needed for the reward.

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Variable Ratio Schedule (VR)

An unpredictable number of responses are needed for a reward. For example, VR10 could mean 5, then 15, then 8 responses for the reward.

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What does a higher relative rate of responding mean?

It means that the individual is more likely to choose the option with the higher relative rate of responding.

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Fixed-Interval Scallop

The pattern of responding on a fixed-interval schedule where the response rate increases as the time for reward gets closer. It looks like a scallop on a graph.

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Variable-Interval Schedule (VI)

A reinforcement schedule where a reward is given after a variable amount of time has passed since the last reward. The time is unpredictable.

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What are the main differences between ratio and interval schedules?

Ratio schedules are based on the number of responses, while interval schedules are based on the time elapsed since the last reinforcement.

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What makes Variable Ratio (VR) schedules so effective?

They produce high and consistent rates of responding because the reward is unpredictable, making the organism keep working to potentially earn a reward at any time.

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Study Notes

Introduction to Schedules of Reinforcement

  • A schedule of reinforcement is a program or rule that determines when a behavior is followed by a reinforcer.
  • Schedules influence how instrumental responses are learned and maintained through reinforcement.
  • Simple schedules use a single factor to determine reinforcement. This factor can be the number of responses or the time elapsed.

Types of Schedules of Reinforcement

  • Interval Schedules
    • Reinforcement is based on time.
    • Fixed-Interval (FI): Reinforcement occurs after a fixed amount of time.
    • Variable-Interval (VI): Reinforcement occurs after varying amounts of time.
  • Ratio Schedules
    • Reinforcement is based on the number of responses.
    • Fixed-Ratio (FR): Reinforcement occurs after a fixed number of responses.
    • Variable-Ratio (VR): Reinforcement occurs after a varying number of responses.

Ratio Schedules

  • Continuous Reinforcement (CRF): Every response results in a reinforcer.
  • Fixed-Ratio (FR): Reinforcement occurs after a specific number of responses. This often leads to a post-reinforcement pause.
  • Variable-Ratio (VR): Reinforcement occurs after a varying number of responses. These schedules typically result in a high and steady response rate without noticeable pauses.

Interval Schedules

  • Fixed-Interval (FI): Reinforcement is delivered after a specific period of time has elapsed. A characteristic pause (or scalloping) pattern occurs just before the expected reinforcer delivery.
  • Variable-Interval (VI): Reinforcement is produced after a varying amount of time has passed; this schedule maintains a relatively steady response rate without marked pauses.

Concurrent Schedules

  • Concurrent schedules allow an organism to choose between different response alternatives with different reinforcement schedules.
  • The subject can switch between responding to one alternative and the other at various times.

Measures of Choice Behavior

  • Relative rates of reinforcement for alternative responses can be determined.
  • Calculating the relative rate of reinforcement is analogous to calculating the relative rate of response.

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Description

This quiz explores the various schedules of reinforcement, which are essential in understanding behavioral psychology. You will learn about interval and ratio schedules, including fixed and variable types. Test your knowledge on how these schedules influence learning and response behavior.

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