- the role of consequences
- rein forcers
- punishers
- immediacy of consequences
- shaping
- Extinction
- schedules of reinforcement
- Maintenance and the role of antecedents
The role of Consequences
Pleasurable
consequences strengthen behavior; unpleasant consequences weaken
it. In other words, pleasurable consequences increase the frequency with which
an individual engages in a behavior, whereas unpleasant consequences reduce the
frequency of a behavior. If students enjoy reading books, they will probably
read more often. If they find stories boring or are unable to concentrate, they
may read less often, choosing other activities instead. "pleasurable
consequences are called reinforcers;
unpleasant consequences are called punishers.
Reinfcorcers
A reinforcer is defined as any consequence that
strengthens (that is, increases the frequency of) a behavior. (Effectiveness of
the behavior must be demonstrated). Candy cannot be reinforcer some children
since they may not like it. No reward can be assumed to be a reinforcer for
everyone under all conditions.
Primary and Secondary Reinforces:
Primary
reinforcers satisfy basic human needs. Some examples
are food, water, security, warmth, and sex. Secondary reinforcers are reinforcers that acquire their
value by being associated with primary reinforcers or other well-established
secondary reinforcers. For example, money has no value to a
young child until the child learns that money can be used to buy things that
are themselves primary or secondary reinforcers. Grades have little value to
students unless their parents notice and
value good grades, and parents' praise is of value because it is associated
with love, warmth, security, and other reinforcers. Money and grades are
examples of secondary reinforcers because they have no value in themselves but
have been associated with primary reinforcers or with other well-established
secondary reinforcers.
Secondary
Reinforcers have three basic categories:
- Social reinforcers (praise, smiles, hugs, or attention)
- Activity reinforcers (such as access to toys, games, or fun activities)
- Token (or symbolic) reinforcers(such as money, grades, stars, or points)
Positive and Negative Reinforcers
Positive
reinforce is pleasurable consequence given to
strengthen behavior. Negative reinforcer
is release from an unpleasant situation, given to strengthen behavior When a
teacher says, "If you get an A on tomorrow's test you won't have to do
home work the rest of the week," she's using negative reinforcement
(escape from an unpleasant consequence, assuming homework is)
Premack
Principle: Rule stating that enjoyable activities
can be used to reinforce participation in less enjoyable activities. "As
soon as you finish your work, you may go outside" or "Clean up your
art project, and then I will read you a story."
Intrinsic and Extrinsic Reinforcers
Intrinsic
reinforcers: Behaviors
that a person enjoys engaging in for
their own sake, without any other reward. People like to draw,
read, sing, play games, or swim for no reason other than the fun of doing it
Extrinsic
reinforcers: Praise or rewards given to motivate
people to engage in behavior that they might not engage in without them.
Practical Reinforcers
Self-reinforcement:
Students may be taught to praise themselves, give themselves a mental pat on
the back, check off progress on a form, give themselves a short break, or
otherwise reinforce themselves for completing a task or staying out of trouble.
Praise:
Phrases such as "Good job,"
"Way to go," "I knew you could do it,"
Attention:
Listening, nodding, or moving closer may provide a child with the positive
attention she or he is seeking.
Grades
and recognition: Grades and recognition (e. g.,
certificates of accomplishment)
Call
home: Calling home or sending a note to child’s parents
to recognize success can be a powerful reinforce.
Privileges: Children can earn free time, access to
special equipment (e.g., soccer balls), or special roles (such as running
errands or distributing papers)
Activity
reinforcers: On the basis of achieving pre-established
standards, students can earn free time, videos, games, or access to other fun
activities.
Tangible
reinforcers: Children may earn points for achievement
or good behavior that they can exchange for small toys, erasers, pencils,
marbles, comic books, stickers, and so on.
Food: Raisins, fruit,
peanuts, or other healthy snacks can be
used as reinforcers.
Punishers
Punishment:
Unpleasant consequences used to weaken behavior.
Presentation
punishment: An aversive stimulus following a
behavior, used to decrease the chances that the behavior will occur again.
Aversive
stimulus: An unpleasant consequence that a person tries to
avoid or escape.
Removal
punishment: Withdrawal of a pleasant consequence that
is reinforcing a behavior, designed to decrease the chances that the behavior
will recur. Examples include loss of a privilege, having to stay in during
recess, or having to stay after school. One frequently used form of removal
punishment in classrooms is time out,
in which a student who misbehaves is required to sit in the corner or in the hall
for several minutes.
Timeout:
Procedure of removing a student from a situation in which misbehavior was being
reinforced.
Unless an unpleasant consequence reduces the
frequency of the behavior it follows, it may not be a punisher.
Immediacy of Consequences
One very important principle of behavioral learning
theories is that consequences that follow behaviors closely in time affect behavior far more than delayed consequences
do
Shaping
Immediacy of reinforcement is important to teaching,
but so is the decision as to what to reinforce. The teaching of a new skill or
behavior by means of reinforcement for small steps toward the desired goal. The
term shaping is used in behavioral learning theories to refer to the teaching of new skills or behaviors by reinforcing
learners for approaching the desired final behavior.
Extinction
Reinforcers strengthen behavior but what happens
when reinforcers are withdrawn? Eventually, the behavior will be weakened, and
ultimately, it will disappear. This process is called extinction of a
previously learned behavior.
Extinction
burst: The increase in levels of a behavior in the early stages
of extinction
Schedules
of Reinforcement
The frequency and predictability of reinforcement
Fixed-ratio
(FR) schedule: Reinforcement schedule in which desired
behavior is rewarded following a fixed number of behaviors. One
common schedule of reinforcement is the fixed-ratio (FR) schedule, in which a
reinforcer is given after a fixed number of behaviors. For ex-ample, a teacher
might say, "As soon as you finish ten problems, you may go outside."
Variable-ratio (VR) schedule Reinforcement schedule in
which desired behavior is rewarded following an unpredictable number of behaviors.
Fixed-interval schedule: Reinforcement schedule in which
desired behavior is rewarded following a constant amount of time.
Variable-interval
schedule: Reinforcement schedule in which desired behavior is rewarded
following an unpredictable amount of time.
Maintenance
Continuation of behavior. Poorly behaved students may need careful, systematic reinforcement for doing schoolwork. After a while, however,
they will find out that doing school work pays off in grades, in parental
approval, in ability to understand what is going on in class, and in knowledge.
Role of Antecedents
The stimuli that precede a behavior also play an
important role. Antecedent stimuli,
events that precede a behavior, are also known as cues, because they inform us what behavior will be
reinforced and/or what behavior will be punished. Discrimination is the use of
cues, signals, or information to know when behavior is likely to be reinforced.(Exp:
Observing the best time to ask for a raise from your boss).
Generalization: Carryover of behaviors, skills, or concepts
from one setting or task to another. Usually, when a
classroom management program is successfully introduced in one setting,
students' behaviors do not automatically improve in other settings. Instead,
students learn to discriminate
among settings.
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