Learning
can be defined as a
relatively permanent change in the cognition, which is reflected by the change
in the action or behavior of the individual. Sometimes learning brings subtle
changes in the cognition and only slightly changes the behavior as the changes
happen only internally. Learning is closely related to our memory, our brain
stores data in neurons by the electrochemical changes.
Theories
of learning
1.
Social
Learning Theory (Bandura)
According
to this theory of learning, people learn through observing behavior, attitudes,
and outcomes of those behaviors of others’. These observations are made from
our early childhood. A child start learning from observing the behaviors of
their parents, siblings etc when later on he learn from observing the world
around him, like the neighborhood, school, friends etc. the observations made
become the basis of the actions or behaviors in the future, the individual
behave according to the observation being made by him. E.g child by observing his
parents learn various actions & in near future he will also start
performing the similar actions. The
observations made by the individual make some cognitive changes in him &
based on its application & his personal experience he will strengthen or
modify such learning. Social learning theory explains human behavior in terms
of continuous reciprocal interaction between cognitive, behavioral, and
environmental influences.
The
learning through observation learning is influenced by following factors
- Attention
— the attention of the observer will decide the learning & its
outcome. The attention will depend upon various factors attraction, distinctiveness,
affective valence, prevalence, complexity, functional value. Levels of
attention also depend on the individual’s characteristics e.g. sensory
capacities, arousal level, perceptual set, past reinforcement etc.
- Retention —
it is the amount of memorizing or retaining the observation in your mind
by coding the observation & its constituents. When an individual
observe by symbolic coding, mental images, cognitive organization,
symbolic rehearsal, motor rehearsal etc the details of observation is
recorded in the brain. The level of retention will depend on the attention
level of the individual in recording he details of the observation.
- Reproduction — it is the process of performing or repeating the
observed behavior or action by the observer & evaluating it. It is the
change in the behavior or actions of the individual after the learning.
- Motivation
— it is having a good reason to imitate the observed behavior the level of
motivation depends on the attractiveness of the observation & its
outcomes, perceived incentives & need of the observer.
According
to Bandura this theory defines the concept of “reciprocal determinism”, that is, the world
and a person’s behavior cause each other, while behaviorism essentially states
that one’s environment causes one’s behavior. Bandura considered personality as
an interaction between three components: the environment, behavior, and one’s
psychological processes (one’s ability to entertain images in minds and
language).
2.
Classical
Conditioning (Ivan Pavlov)
Several
types of learning exist. The most basic form is associative learning, i.e., making a new
association between events in the environment. There are two forms of associative
learning: classical conditioning (made famous by Ivan Pavlov’s experiments with
dogs) and operant conditioning.
Russian
physiologist Ivan Pavlov did Nobel prize-winning work on digestion. While
studying the role of saliva in dogs’ digestive processes, he accidentally
discovered that there is some relation between the stimuli or sounds just
before the meat powder was presented & the salivation process of the dog.
Fascinated
by this finding, Pavlov paired the meat powder with various stimuli such as the
ringing of a bell. Repeatedly the bell was rung just before the meat powder is
given to the dog. Later on only bell was rung but no meat powder was given, but
as predicted, dog responded by salivating to the sound of the bell (without the
food). The bell began as a neutral stimulus (i.e. the bell itself did not
produce the dogs’ salivation). However, by pairing the bell with the stimulus
that did produce the salivation response, the bell was able to acquire the
ability to trigger the salivation response. Pavlov therefore demonstrated how
stimulus-response bonds (which some consider as the basic building blocks of
learning) are formed. He dedicated much of the rest of his career further
exploring this finding.
In
technical terms, the meat powder is considered an unconditioned stimulus (UCS)
and the dog’s salivation is the unconditioned response (UCR). The bell is a
neutral stimulus until the dog learns to associate the bell with food. Then the
bell becomes a conditioned stimulus (CS) which produces the conditioned
response (CR) of salivation after repeated pairings between the bell and food.
3.
Reinforcement
Theory ( B.F. Skinner )
According
to B.F. Skinner learning is a function of change in overt or
visible behavior. According to Skinner individual respond to events (stimuli)
that occur in the environment, it is the consequences that will determine
whether the action or behavior will be repeated or not by the individual. So we
can condition the behavior of the individual by altering the consequences to
the responses towards stimuli.
The consequence which strengthen the desired
behavior is known as reinforcer
One of the distinctive aspects of Skinner's
theory is that it attempted to provide behavioral explanations for a broad
range of cognitive phenomena. For example, Skinner explained drive (motivation)
in terms of deprivation and reinforcement schedules. Skinner (1957) tried to
account for verbal learning and language within the operant conditioning
paradigm, although this effort was strongly rejected by linguists and
psycholinguists. Skinner (1971) deals with the issue of free will and social
control.
Reinforcement theory is the process of shaping behavior
by controlling the consequences of the behavior. In reinforcement theory a
combination of rewards and/or punishments is used to reinforce desired behavior
or extinguish unwanted behavior. Any behavior that elicits a consequence is
called operant behavior,
because the individual operates on his or her environment. Reinforcement theory
concentrates on the relationship between the operant behavior and the
associated consequences, and is sometimes referred to as operant conditioning.
BACKGROUND AND DEVELOPMENT OF
REINFORCEMENT THEORY
Behavioral theories of learning and motivation focus on
the effect that the consequences of past behavior have on future behavior. This
is in contrast to classical conditioning, which focuses on responses that are
triggered by stimuli in an almost automatic fashion. Reinforcement theory
suggests that individuals can choose from several responses to a given
stimulus, and that individuals will generally select the response that has been
associated with positive outcomes in the past. E.L. Thorndike articulated this
idea in 1911, in what has come to be known as the law of effect. The law of effect basically states that, all
other things being equal, responses to stimuli that are followed by
satisfaction will be strengthened, but responses that are followed by
discomfort will be weakened.
B.F. Skinner was a key contributor to the development of
modern ideas about reinforcement theory. Skinner argued that the internal needs
and drives of individuals can be ignored because people learn to exhibit
certain behaviors based on what happens to them as a result of their behavior.
This school of thought has been termed the behaviorist, or radical behaviorist,
school.
REINFORCEMENT, PUNISHMENT, AND
EXTINCTION
·
Positive reinforcement: - when the desired behavior by the
individual result in favorable or desirable consequence. When individual
receive the favorable consequence he will try to repeat the action so as to get
the same consequences. E.g. an appreciation letter by manger to a team leader
to complete the project before time will increase the probability that the team
leader will show similar behavior in future.
·
Negative reinforcement:- results when an undesirable behavioral
consequence is withheld, with the effect of strengthening the probability of
the behavior being repeated. Negative reinforcement is often confused with
punishment, but they are not the same. Punishment attempts to decrease the
probability of specific behaviors; negative reinforcement attempts to increase
desired behavior, e.g. a sales manager being more lenient towards a sales
executive achieving higher sales volume. This lenient behavior will prompt the
sales executive to achieve higher sales on a regular basis.
·
Punishment:- when an undesirable action or
behavior is subjected to undesirable consequence, this prompts the individual
not to repeat the same behavior is known as punishment. E.g. when an employee
comes on duty in drunk condition the manager didn’t allow him to work &
deduct the wages of that day in attempt to modify the behavior is a punishment.
Here coming on duty in drunken condition is the undesirable behavior for the
organization, removing the worker from work & deducting his wages for the
day is the undesirable consequences for the employee. By this way the employee
will not repeat this behavior as his actions met with the undesirable
consequences. Punishments are used in an attempt to decrease the probability of
specific behaviors being exhibited. Punishments should be used with caution as
irresponsible and frequent use of this will result in demotivation of the
employees or its efficacy will also be lowered.
·
Extinction:- it is a process of withholding a
desirable or favorable consequence as a result of undesirable behavior in an
attempt to modify the behavior is known as extinction. Similar to punishment in
that its purpose is to reduce unwanted behavior. E.g. the promotion or
increment of an employee is withheld due to his irregularities in the working,
this withholding of a desirable consequence will prompt the individual to
modify his behavior & show betterment in his job to get the promotion or
increment.
SCHEDULES OF REINFORCEMENT
The timing of the behavioral consequences that follow a
given behavior is called the reinforcement schedule. Basically, there are two
broad types of reinforcement schedules: continuous and intermittent.
·
Continuous reinforcement:- it is a schedule of reinforcement where a
behavior is reinforced each time it occurs. This type of reinforcement is the
fastest way to establish new behaviors or to eliminate undesired behaviors. But
it is not consistent in its efficacy & not feasible and practical in an
organization
·
Intermittent reinforcement: - it is a schedule of reinforcement
where each instance of a desired behavior is not reinforced. The reinforcement
is done intermittently, based on the frequency & proportion of consequence
to behavior we can define four types of intermittent reinforcement schedules:
fixed interval, fixed ratio, variable interval, and variable ratio.
·
Fixed interval schedules of
reinforcement:- when desired
behaviors are reinforced after set periods of time. E.g. monthly salary, annual
increments etc.
·
Fixed ratio schedule of reinforcement:- when reinforcement is done after a
set number of occurrences of the desired behaviors . e.g. the incentive to a
sales officer is only given when he surpasses the given targets.
·
Variable interval reinforcement
schedules:- when desired
behaviors are reinforced after varying periods of time. Usually the timing is
not know by the individual examples of variable interval schedules special
incentive or promotion to an employee showing better performance.
·
Variable ratio reinforcement schedule:- when the reinforcement is done
after a number of desired behaviors have occurred, the number of occurrence is
variable depending on other factors ,e.g. the percentage of sales incentive
depending on the percentage achievement of the sales target.
REINFORCEMENT THEORY APPLIED TO
ORGANIZATIONAL SETTINGS
Probably the best-known application of the principles of
reinforcement theory to organizational settings is called behavioral
modification, or behavioral contingency management. Typically, a behavioral
modification program consists of four steps:
- Specifying
the desired behavior as objectively as possible.
- Measuring
the current incidence of desired behavior.
- Providing
behavioral consequences that reinforce desired behavior.
- Determining
the effectiveness of the program by systematically assessing behavioral
change.
Reinforcement theory is an important explanation of how
people learn behavior. It is often applied to organizational settings in the
context of a behavioral modification program. Although the assumptions of
reinforcement theory are often criticized, its principles continue to offer
important insights into individual learning and motivation.
Operant Conditioning
According
to operant conditioning theory of learning if the responses to behaviors are
favorable or desirable then the individual will try to repeat or further
improve that behavior in future and if the responses to behaviors are not
favorable and desirable then the behaviors will be altered or not repeated. So
the behaviors are the function of its consequences. It emphasizes on voluntary
behaviors and the responses one get from the environment.
Cognitive theory of
learning
According
to cognitive theory of learning, it is a process that represents changes in the
content, organization and storage of information within the individual and can’t
be represented only by changes in the behavior, secondly the learner control
the process of learning by selecting what is significant or insignificant to
him.
The
learning is through two processes accommodation and assimilation, where
accommodation is the process of changing content by addition of new information
and assimilation is the incorporation of new experience in to existing
categories.
Experiential Learning
Theory (David Kolb)
Cycle of Learning:- it is the main principle of
experiential learning theory, and expressed as four stage cycle of learning
begin with 'immediate or concrete
experiences' which provide a
basis for 'observations and reflections,
which are assimilated and distilled into 'abstract concepts' producing new implications for action which
can be 'actively tested' in turn
creating new experiences.
According
to Kolb a learner will go through a cycle of experiencing, reflecting,
thinking, and acting.
Kolb's model therefore
works on two levels - a four-stage
cycle:
·
Concrete Experience - (CE)
·
Reflective Observation - (RO)
·
Abstract Conceptualization - (AC)
·
Active Experimentation - (AE)
Based
on the above Kolb had defined four styles of learning
·
Diverging (CE/RO)
·
Assimilating (AC/RO)
·
Converging (AC/AE)
·
Accommodating (CE/AE)
According
to experiential learning if we know the orientation of learner then we can use
a preferred method to make him learn the new things.
Here
are brief descriptions of the four Kolb learning styles:
·
Diverging
(feeling and watching - CE/RO)
- These people are able to look at things from different perspectives. They are
sensitive. They prefer to watch rather than do, tending to gather information
and use imagination to solve problems. They are best at viewing concrete
situations several different viewpoints. Kolb called this style 'Diverging'
because these people perform better in situations that require
ideas-generation, for example, brainstorming. People with a Diverging learning
style have broad cultural interests and like to gather information. They are interested
in people, tend to be imaginative and emotional, and tend to be strong in the
arts. People with the Diverging style prefer to work in groups, to listen with
an open mind and to receive personal feedback.
·
Assimilating
(watching and thinking - AC/RO)
- The Assimilating learning preference is for a concise, logical approach.
Ideas and concepts are more important than people. These people require good
clear explanation rather than practical opportunity. They excel at
understanding wide-ranging information and organizing it a clear logical
format. People with an Assimilating learning style are less focused on people
and more interested in ideas and abstract concepts. People with this style are
more attracted to logically sound theories than approaches based on practical
value. These learning style people are important for effectiveness in
information and science careers. In formal learning situations, people with
this style prefer readings, lectures, exploring analytical models, and having
time to think things through.
·
Converging
(doing and thinking - AC/AE)
- People with a Converging learning style can solve problems and will use their
learning to find solutions to practical issues. They prefer technical tasks,
and are less concerned with people and interpersonal aspects. People with a
Converging learning style are best at finding practical uses for ideas and
theories. They can solve problems and make decisions by finding solutions to
questions and problems. People with a Converging learning style are more
attracted to technical tasks and problems than social or interpersonal issues.
A Converging learning style enables specialist and technology abilities. People
with a Converging style like to experiment with new ideas, to simulate, and to
work with practical applications.
·
Accommodating
(doing and feeling - CE/AE)
- The Accommodating learning style is 'hands-on', and relies on intuition
rather than logic. These people use other people's analysis, and prefer to take
a practical, experiential approach. They are attracted to new challenges and
experiences, and to carrying out plans. They commonly act on 'gut' instinct
rather than logical analysis. People with an Accommodating learning style will
tend to rely on others for information than carry out their own analysis. This
learning style is prevalent and useful in roles requiring action and
initiative. People with an Accommodating learning style prefer to work in teams
to complete tasks. They set targets and actively work in the field trying
different ways to achieve an objective.
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