Chapter 9: Differential Reinforcement
Transcript of Chapter 9: Differential Reinforcement
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Chapter 9:
Differential
Reinforcement
Chapter 10:
GeneralizationClassroom Management
Dr. Gloria D. Campbell-
Whatley
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SHAPING
Development of a new behavior.
Procedure used to establish a
behavior that is not presently
performed by an individual. You
cannot wait till it occurs, therefore
you must shape the behavior.
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Factors Influencing Shaping
Specify final and desired behavior-terminal behavior Choose the starting Behavior
Choose the Shaping Steps
Moving Along at the correct Pace
Not too soon
Sufficient small steps
May lose a behavior if you are moving too fast
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Pitfalls of Shaping
Harmful behaviors can be
developed
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CHAINING
A stimulus response chain.
Each response except the last
produces the next stimulus
Task Analysis-forward and
backward chaining
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Task Analysis
Should be stated in terms that require
completion of the task.
State the task in terminology that offers
an instruction
Be very specific
Use multiple steps
Review and do the steps to determine if
more steps are required.
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Format
Forward Chaining (mild)
Backward Chaining (severe)
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Collecting Baseline
Information
Information must be collected in the environment it is to be performed.
Is the task analysis appropriate?
Identify steps that could cause
problems.
Is instruction required?
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Checkpoint
The first step in writing a task analysis is to
do the job yourself. T of F
Which step in the TA needs to be changed?
Open dishwasher door
Grasp cup
Put cup in dishwasher
Grasp cup and place in dishwasher
Close dishwasher door
Press on button
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Checkpoint
Emily has been teaching Steve to
make coffee. Steve has no physical
disabilities. Now Emily is going to
teach Jason (who has movement
problems) to make coffee. Do you
think Emily should use the same TA?
Is it important to write a TA down?
Why?
A TA is like a stew, soup, or recipe?
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Hand Washing
Turn on waterWet hands
Dispense soapSoap handsRinse handsPick up towel
Dry hands
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Prompting
Least to Greatest
Verbal
Modeling
Gestures
Priming (gentle touching or guiding)
Physical
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Prompt Analysis and
TerminologyManipulation or discrimination error
unable to perform the step
prompt depends on error
Time Delay
prompt provided after the instructional cue
helps learning without error
Scheduling
should not be in isolation but in the natural
environment
Distributed Trials
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Checkpoint
What is the purpose of prompting?
Give the most help possible
Help students become independent
To correct mistakes
Which of the following is never a prompt?
Asking a question
Doing a step for the student
Showing the student what to do
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Answer
BB
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Checkpoint
A ______ prompt is a few
simple words that tell the
student what to do.
The more words you use, the
better the verbal prompt. T or
F
Can a question be a prompt?
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Answers
VerbalFalse
Yes (what’s next?)
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Checkpoint
When Jack points to the window to the window to let Rick know it is time to wipe the window, Jack is using a ______ prompt.
Lana was looking out the window when her teacher gave her a gesture prompt for the second time. Lana did not do the task. What might be the problem?
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Answers
GestureMay not have seen the prompt (looking out the window)
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Factors Influencing The
Effectiveness Of Chaining
Identify components of the sequence
Conduct a preliminary modeling trail
Begin training the behavioral chain
Use ample reinforcers
Decrease extra assistance
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Pitfalls of Chaining
Thoughtless administration
of Reinforcers
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FADING
Gradual change over
successive trails
Riding a bicycle
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Factors Influencing Fading
Choosing the final desired
stimulus
Choosing the staring stimulus
Choosing the fading steps
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Pitfalls
May cause the increase of a
bad behavior
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Group work
Write a task analysis with your
group for hand washing. Do
not stay in your seat, but take
10 minutes and go to the
ladies room and devise the
steps.
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Group Work
With your group, design a skit
where you will need to use
prompts. As you act out the skit ,
the other groups will guess the
types of prompt you are using.
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Training for
Generalization
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Hierarchy of Response
Competence
Generalization
Fluency
Acquisition
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Types of Generalization
Stimulus Generalization - S
S R
S
Carryover - different antecedent,
same behavior
refers to performance of a behavior under conditions other than those present during acquisition of the behavior (response). Different class
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Stimulus Generalization
S = different people
S = different places
S = any difference in the antecedent condition
After several weeks of using a program, Sara finally stopped yelling out the answers to every question in her language arts class. Ms. Smith applied the same procedure just once in math class, and Sara immediately started raising her hand.
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Types of Generalization
Response Generalization - R
Extension - same antecedent, S R
new behavior R
refers to change in behaviors other
than those trained during acquisition of
a behavior (response).
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Response Generalization
Using appropriate
variations of
behavior to a same
or similar stimulus
Like using “hello”, or
“hi, how are you?”,
or “yo, what’s up?”
when greeting a
friend.
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Types of Generalization
R R R R R
training passage of time without training
Maintenance - continue performing the
behavior even after training
contingencies are no longer in effect
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What type of generalization?
Tia’s teacher is working with Tia to greet
various people in and around the school.
So far she has learned how to say hello to
the principal, assistant principal, and the
cashier in the cafeteria line. Yesterday,
Tia said hello to a bus driver out on the
sidewalk and a parent who came into her
classroom.
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What type of generalization?
Last year in her Transition Class, Beth learned how to sort her clothes and use a coin operated washer and dryer to do her laundry. A year later, when she moved into a supervised apartment program, she only needed one prompt by the residential counselor when she was using the laundry facilities in her apartment complex for the first time.
___________
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What type of generalization?
Mr. Hawkins started reinforcing students
for completing their vocabulary worksheets
on time. The class works on math after
language arts, and for the past two weeks,
Mr. Hawkins has noticed that more of his
students have been turning in their math
homework assignments on time.
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Strategies to Facilitate
Generalization
Sequential Modification (Setting) (Train & Probe)
applying a reinforcement contingency in one class
that has demonstrated success in another class.
In study hall, Gary completes his assignments
when he is wearing earphones playing music. Ms.
Jeffries has decided to try this method in her
English class.
Introduce to Natural Reinforcers (Consequences)
Drivers Ed - teaching a functional skill
classroom, book, test, practice
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Strategies to Facilitate
Generalization (continued)
Train Sufficient Exemplars – Teach one example at a time
General Case Programming (Antecedents) (Use examples)
Job applications
Gas pumps
Vending Machines
Train in Multiple Settings (Setting)
Money skills - school store, Hardees, grocery store
Eating skills - cafeteria, restaurant, kitchen
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Strategies to Facilitate
Generalization (continued)
Use of Indiscriminable Contingencies
(Consequences) (Intermittent Reinforcement)
homework - achieving maintenance by using
intermittent schedules of reinforcement
reinforcing desired behaviors in one setting,
then offering the same kind of reinforcement
noncontingently in another setting and seeing
those same desired behaviors appear.