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Research
Methods STA630
VU
Lesson
5
CONCEPTS
Things
we observe are the observable realities,
which could be physical or
abstract. For purposes
of
identification
of reality we try to give a
name to it. By using the
name we communicate with others
and
over
time it becomes part of our
language.
A
concept is a generalized idea about a
class of objects, attributes,
occurrences, or processes that
has
been
given a name. In other words a
concept is an idea expressed as a
symbol or in words. Natural
science
concepts are often expressed
in symbolic forms. Most social
science concepts are
expressed as
words.
Words, after all, are symbols
too; they are symbols we
learn with language. Height is a
concept
with
which all of you are
familiar. In a sense, a language is
merely an agreement to represent
ideas by
sound
or written characters that
people learned at some point in
their lives. Learning
concepts and
theory
is like learning language.
Concepts
are an Abstraction of Reality
Concepts
are everywhere, and you use
them all the time. Height is
simple concept form
everyday
experience.
What does it mean? It is
easy to use the concept of
height, but describing the
concept itself
is
difficult. It represents an abstract
idea about physical reality,
or an
abstraction of reality.
Height is a
characteristic
of physical objects, the distance from
top to bottom. All people,
buildings, trees,
mountains,
books and so forth have height.
The word height refers to an
abstract idea. We associate
its
sound
and its written form with
that idea. There is nothing
inherent in the sounds that make up the
word
and
the idea it represents. The
connection is arbitrary, but it is
still useful. People can
express the
abstract
idea to one another using thee
symbols.
In
other words concepts are the
abstractions of reality physical of
non-physical like table,
leadership,
productivity,
and morale are all labels
given to some phenomenon (reality).
The concepts stand
for
phenomenon
not the phenomenon itself; hence it
may be called an abstraction of empirical
reality.
Degree
of Abstraction
Concepts
vary in their level of abstraction.
They are on a continuum from
the most concrete to the
most
abstract.
Very concrete ones refer to
straightforward physical objects or
familiar experiences (e.g.
height,
school, age, family income, or housing).
More abstract concepts refer
to ideas that have a
diffuse,
indirect expression (e.g. family
dissolution, racism, political
power)
The
organization of concepts in sequence from
the most concrete and
individual to the most
general
indicates
the degree of abstraction.
Moving
up the ladder of abstraction, the basic
concept
becomes
more abstract, wider in scope,
and less amenable to
measurement. The scientific
researcher
operates
at two levels of concepts
(and propositions) and on the empirical
level of variables. At the
empirical
level we experience reality that is
we observe objects or events.
Sources
of Concepts
Everyday
culture is filled with
concepts, but many of them have vague and
unclear definitions.
Likewise,
the values and experiences of people in a
culture may limit everyday
concepts. Nevertheless,
we
borrow concepts from
everyday culture; though
these to be refined.
We
create concepts from personal
experiences, creative thought, or
observation. The classical
theorist
originated
many concepts like family
system, gender role, socialization,
self-worth, frustration, and
displaced
aggression.
We
also borrow concepts from
sister disciplines.
16
Research
Methods STA630
VU
Importance
of Concepts
Social
science concepts form a specialized
language, or jargon.
Specialists
use jargon as a short hand
way
to communicate with one another. Most
fields have their own
jargon. Physicians, lawyers,
engineers,
accountants, plumbers, and auto mechanics
all have specialized languages. They
use their
jargon
to refer to the ideas and objects with
which they work. Special problems
grow out of the need
for
concept precision and
inventiveness. Vague meanings
attached to a concept create problems
of
measurement.
Therefore, not only the
construction of concepts is necessary
but also these should
be
precise
and the researchers should have some
agreement to its
meaning.
Identification
of concepts is necessary because we
use concepts in hypothesis formulation.
Here too one
of
the characteristics of a good hypothesis is
that it should be conceptually
clear.
The
success of research hinges on (1)
how clearly we conceptualize and (2)
how well others
understand
the
concept we use. For example
we might ask respondents for
an estimate of their family income.
This
may
seem to be a simple, unambiguous concept,
but we may receive varying and
confusing answers
unless
we restrict or narrow the concept by
specifying:
·
Time
period, such as weekly,
monthly, or annually.
·
Before
or after income taxes.
·
For
head of the family only or
for all family
members.
·
For
salary and wages only or
also for dividends, interest, and
capital gains.
·
Income
in kind, such as free rent,
employee discounts, or food
stamps.
Definitions
Confusion
about the meaning of concepts
can destroy a research study's
value without the researcher
or
client
even knowing it. If words have different
meanings to the parties involved, then
they are not
communicating
on the same wave-length. Definitions
are one way to reduce
this danger.
Dictionary
Definitions
Researchers
must struggle with two types
of definitions. In the more familiar
dictionary, a concept is
defined
with synonyms. For example, a
customer is defined as a patron: a
patron, in turn, is defined
as
customer
or client of an establishment; a client is
defined as one who employs the
services of any
professional
..., also loosely, a patron of
any shop. These circular
definitions may be adequate
for
general
communication but not for
research.
Dictionary
definitions are also called
conceptual or theoretical or nominal
definitions. Conceptual
definition
is a definition in abstract, theoretical
terms. It refers to other ideas or
constructs. There is no
magical
way to turn a construct into
precise conceptual definition. It
involves thinking
carefully,
observing
directly, consulting with
others, reading what others
have said, and trying possible
definitions.
A
single construct can have several
definitions, and people may
disagree over definitions.
Conceptual
definitions
are linked to theoretical
frameworks and to value positions.
For example, a conflict
theorist
may
define social
class as the
power and property a group
of people in a society has or lacks.
A
structural
functionalist defines it in terms of
individual who share a social
status, life-style, or
subjective
justification.
Although people disagree
over definitions, the researcher
should always state
explicitly
which
definition he or she is
using.
Some
constructs are highly
abstract and complex. They
contain lower level concepts
within them (e.g.
powerlessness),
which can be made even more
specific (e.g. a feeling of little
power over wherever
on
lives).
Other concepts are concrete
and simple (e.g. age). When
developing definitions, a
researcher
needs
to be aware of how complex
and abstract a construct is. For
example, a concrete construct
such
as
age is easier to define (e.g. number of
years that have passed since
birth) than is a complex,
abstract
concept
such as morale.
17
Research
Methods STA630
VU
Operational
Definition
In
research we must measure
concepts and constructs, and this
requires more rigorous definitions.
A
concept
must be made operational in
order to be measured. An operational
definition gives meanings
to
a
concept by specifying the activities or
operations necessary to measure it. An
operational definition
specifies
what must be done to measure the
concept under investigation. It is
like a manual of
instruction
or a recipe: do such-and-such in
so-and-so manner.
Operational
definition is also called a
working
definition stated
in terms of specific testing
or
measurement
criteria. The concepts must
have empirical referents (i.e. we must be
able to count,
measure,
or in some other way gather
thee information through our
senses). Whether the object to
be
defined
is physical e.g. a machine tool) or
highly abstract (e.g. achievement
motivation), the definition
must
specify characteristics and
how to be observed. The specification
and procedures must be so
clear
that
any competent person using them
would classify the objects the same
way. So in operational
definition
we must specify concrete
indicators that can be
observed/measured (observable
indicators).
Use
both Definitions in Research
Look
at observable phenomenon, we construct a label for
it, then try to define it
theoretically, which
gives
a lead to the development of criteria
for its measurement, and
finally we gather thee
data.
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