SCOPE &
SCOPE &
LIMITATIONS
LIMITATIONS
what is SCOPE?
what is SCOPE?
Scope
Scope
refers to how far the
refers to how far the
research area has explored and
research area has explored and
parameters
parameters
in with the study will be
in with the study will be
operating in.
operating in.
The
The type
type of
of informa
information
tion to
to be
be included
included
in the scope of a research project
in the scope of a research project
would include
would include
facts
facts
and
and
theories
theories
about the subject
The
The coverage
coverage of
of the
the study
study is
is in
in
terms of:
terms of:
1. General purpose
1. General purpose
2. Population or sample
2. Population or sample
. Time or duration
. Time or duration
!. "ubject matters and topics
!. "ubject matters and topics
discussed
discussed
#. $rea or locality
#. $rea or locality
%xample:
%xample:
This
This investigation investigation as as conducted conducted toto determine the status of the teaching of determine the status of the teaching of science in the high schools of Province $ science in the high schools of Province $ as perceived by the teachers and students as perceived by the teachers and students in science classes during the school year in science classes during the school year 1&'&(1&&). The aspects loo*ed into were 1&'&(1&&). The aspects loo*ed into were the +uali,cations of teachers- their the +uali,cations of teachers- their methods and strategies- facilities forms of methods and strategies- facilities forms of supervisory assistance- problems and supervisory assistance- problems and proposed solutions to the problems.
hat /as 0een ncluded...
hat /as 0een ncluded...
General purposeGeneral purpose To determine the status To determine the status
of the teaching of science. of the teaching of science.
Su!"ect matterSu!"ect matter The teaching of science The teaching of science
Topics #aspects$ stu%ie%Topics #aspects$ stu%ie% 3uali,cations 3uali,cations of teachers- their methods and of teachers- their methods and strategies-facilities- form of supervisory facilities- form of supervisory assistance-problems and proposed solutions to
problems and proposed solutions to problems
problems
Population or samplePopulation or sample teachers and teachers and
students students
Area or localitArea or localit /igh schools /igh schools of Provinof Provincece $
$
what is
what is
LIMITATION?
LIMITATION?
Limitations
Limitations--
also *nown as thealso *nown as the bounds- are in4uences that the researcher bounds- are in4uences that the researcher cannot control. They are the cannot control. They are the shortcomin'sshortcomin's- conditions or in4uences- conditions or in4uences that cannot be controlled by the researcher that cannot be controlled by the researcher that place restrictions on your methodology that place restrictions on your methodology and conclusions. $ny limitations that might and conclusions. $ny limitations that might in4uence the results should be mentioned. in4uence the results should be mentioned.
delimitations
delimitations
(elimitations
(elimitations are choices made by the are choices made by the resear
researcher which cher which should beshould be
mentioned. They describe the boundaries that mentioned. They describe the boundaries that you have set for the study. This is the place to you have set for the study. This is the place to explain:
explain:
the things that you are not doing 6and why youthe things that you are not doing 6and why you have chosen not to do them7.
have chosen not to do them7.
the literature you will not the literature you will not review 6and why not7.review 6and why not7.
the population you are not studying 6and whythe population you are not studying 6and why not7.
not7.
the methodological procedures you will not usethe methodological procedures you will not use 6and why you will not use them7.
%8$9P%:
%8$9P%:
$lthough the research has reached its $lthough the research has reached its aims-there were some unavoidable limitations. there were some unavoidable limitations. ;irst- because of the time limit- this research ;irst- because of the time limit- this research was conducted only on a small si<e of was conducted only on a small si<e of population who were attending the riting population who were attending the riting course in their third semester at =T>. course in their third semester at =T>. Therefor
Therefore- to e- to generali<e the generali<e the results for largerresults for larger groups- the study should have involved more groups- the study should have involved more participants at di?erent levels. "econd- the participants at di?erent levels. "econd- the students@ overloaded wor*- to some students@ overloaded wor*- to some extent-might a?ect the result of the correlation might a?ect the result of the correlation between the students@ motivation
hen
considering
what
hen
considering
what
limitations there might be in your
limitations there might be in your
investigation-
be
thorough.
investigation-
be
thorough.
=onsider all of the following:
=onsider all of the following:
1. your analysis
1. your analysis
2. the nature of self(reporting
2. the nature of self(reporting
. the instruments you utili<ed
. the instruments you utili<ed
!. the sample
!. the sample
#. time constraints
#. time constraints
to write in %nglish and their
to write in %nglish and their
writing performance because
writing performance because
they were re+uired to ta*e part
they were re+uired to ta*e part
in many studies at the same
in many studies at the same
time. ;inally- the slow networ*
time. ;inally- the slow networ*
might discourage participants@
might discourage participants@
interests
and
motivation
in
interests
and
motivation
in
joining peer feedbac*
9PABT$C=% of limitations
9PABT$C=% of limitations
Alwas
Alwas
ac)nowle%'e
ac)nowle%'e
a
a
stu%*s
stu%*s
limitations+
limitations+
t is far better for you to identify and t is far better for you to identify and ac*nowledge your study@s limitations ac*nowledge your study@s limitations than to have them pointed out by your than to have them pointed out by your professor and be graded down because professor and be graded down because you appear to have ignored them.
you appear to have ignored them.
,eep in min% that ac)nowle%'ement
,eep in min% that ac)nowle%'ement
of
a
stu%*s
limitations
is
an
of
a
stu%*s
limitations
is
an
opportunit to ma)e su''estions for
opportunit to ma)e su''estions for
further research+
Clamin' limitations is a su!"ecti-e
Clamin' limitations is a su!"ecti-e
process !ecause ou must e-aluate
process !ecause ou must e-aluate
the impact of those limitations+
the impact of those limitations+
Don@t just list *ey wea*nesses and the
Don@t just list *ey wea*nesses and the
magnitude of a study@s limitattions.
magnitude of a study@s limitattions.
Limitations
Limitations
re+uire a critical- overall
re+uire a critical- overall
appraisal and interpretation of their
appraisal and interpretation of their
impact. Eou should answer the +uestion:
impact. Eou should answer the +uestion:
do these problem with errors-
do these problem with errors-
methods-validity- etc. eventually matter and- if
validity- etc. eventually matter and- if
so- to what
Descriptions of possible limitations
Descriptions of possible limitations
All stu%ies ha-e limitations+
All stu%ies ha-e limitations+
/owever- it is important that you
/owever- it is important that you
restrict
your
discussion
to
restrict
your
discussion
to
limitations related to the research
limitations related to the research
problem under investigation.
problem under investigation.
. (o not apolo'i/e for not
. (o not apolo'i/e for not
a%%ressin' issues that ou %i%n*t
a%%ressin' issues that ou %i%n*t
promise
possible methodological limitations
possible methodological limitations
Sample si/e
Sample si/e ( the number of the units
( the number of the units
of analysis you use in your study is
of analysis you use in your study is
dictated by the type of research
dictated by the type of research
problem you are investigating.
problem you are investigating.
Lac) of a-aila!le an%0or relia!le
Lac) of a-aila!le an%0or relia!le
%ata
%ata ( lac* of reliable data will li*ely
( lac* of reliable data will li*ely
re+uire you to limit the scope of your
re+uire you to limit the scope of your
analysis- the si<e of your sample- or it
analysis- the si<e of your sample- or it
can be a signi,cant obstacle in ,nding
can be a signi,cant obstacle in ,nding
a trend and a meaningful
Lac) of prior research stu%ies on the
Lac) of prior research stu%ies on the
topic
topic ( citing prior research studies forms
( citing prior research studies forms
the basis of your literature review and
the basis of your literature review and
helps lay a foundation for understanding
helps lay a foundation for understanding
the research problem you@re investigating.
the research problem you@re investigating.
Measure use% to collect the %ata
Measure use% to collect the %ata ((
sometimes-
after
completing
your
sometimes-
after
completing
your
interpretation
of
the
,ndings-
you
interpretation
of
the
,ndings-
you
discover that the way you gatherd data
discover that the way you gatherd data
inhibited your ability to conduct a
inhibited your ability to conduct a
thorough analysis of the results.
Self1reporte% %ata
Self1reporte% %ata ( whether
( whether
you are relying on pre(existing
you are relying on pre(existing
self(reported data or you are
self(reported data or you are
conducting a +ualitative research
conducting a +ualitative research
study and gathering the data
study and gathering the data
yourself- self(reported data is
yourself- self(reported data is
limite%
limite%
by the fact that it rarely
by the fact that it rarely
can be independently veri,ed.
possible limitations of the
possible limitations of the resear
researcher
cher
Lon'itu%inal e2ects
Lon'itu%inal e2ects ( 0e sure to choose
( 0e sure to choose
a topic that does not re+uire an excessive
a topic that does not re+uire an excessive
amount of time to complete the literature
amount of time to complete the literature
review- apply the methodology- and
review- apply the methodology- and
gather and
gather and interpret the re
interpret the results.
sults.
Cultural an% other tpe of !ias
Cultural an% other tpe of !ias (
( Cote
Cote
that if you detect bias in a prior
that if you detect bias in a prior
research-it must be ac*nowledged and measures
it must be ac*nowledged and measures
ta*en should be explained to avoid
ta*en should be explained to avoid
perpetuating bias.
perpetuating bias.
3ias3ias ( when a person- place- or thing is viewed or ( when a person- place- or thing is viewed or shown in a consistently inaccurate way
Access
Access ( if study depends on access to
( if study depends on access to
people- organi<ations- or for whatever
people- organi<ations- or for whatever
reason- access is denied or limited- it
reason- access is denied or limited- it
needs to be described.
needs to be described.
4luenc in a lan'ua'e
4luenc in a lan'ua'e ( if your research
( if your research
focuses on measuring the perceived
focuses on measuring the perceived
value of after(school tutoring among
value of after(school tutoring among
9exican($merican %" students- and
9exican($merican %" students- and
you@re not 4uent in "panish- you@re
you@re not 4uent in "panish- you@re
limited in being able to read and interpret
limited in being able to read and interpret
"panish language research studies. This
"panish language research studies. This
de,ciency should be ac*nowledged.
when discussing limitations- be
when discussing limitations- be
sure to...
sure to...
Describe each limitation in
Describe each limitation in %etaile%
%etaile%
but
but
concise
concise
terms.
terms.
%xplain why each limitation
%xplain why each limitation exists.
exists.
Provide the
Provide the reasons
reasons
why each limitation
why each limitation
couldn@t
be
overcome
using
the
couldn@t
be
overcome
using
the
methods chosen to gather the data.
methods chosen to gather the data.
$ssess the impact of each limitation in
$ssess the impact of each limitation in
relation to the overall ,ndings and
relation to the overall ,ndings and
conclusions.
conclusions.
f appropriate- describe how these
f appropriate- describe how these
limitations could point to the need of
limitations could point to the need of
further research.
riting
riting tips
tips
×
×
(on*t in5ate the importance of
(on*t in5ate the importance of
our 6n%in's7
our 6n%in's7
e all want our academic wor* to be
e all want our academic wor* to be
viewed as excellent and worthy of a
viewed as excellent and worthy of a
good grade- but it is important that you
good grade- but it is important that you
understand and openly ac*nowledge
understand and openly ac*nowledge
the limitations of your study. n4ating
the limitations of your study. n4ating
the importance of your study@s ,ndings
the importance of your study@s ,ndings
in an attempt to hide its 4aws is a big
in an attempt to hide its 4aws is a big
turn o? to your
×
× Ne'ati-e results are not a limitation7Ne'ati-e results are not a limitation7
Ne'ati-e e-i%ence
Ne'ati-e e-i%ence refers to ,ndings that refers to ,ndings that unexpectedly challenge rather than support unexpectedly challenge rather than support your hypothesis. f you didn@t get the results your hypothesis. f you didn@t get the results you anticipated- it may mean your you anticipated- it may mean your hypothesis was incorrect or you stumbled hypothesis was incorrect or you stumbled onto something unexpected that warrants onto something unexpected that warrants further study. Don@t fall into the trap of further study. Don@t fall into the trap of thin*ing that results contrary to what you thin*ing that results contrary to what you expected is a limitation to your study.
×
×
Sample si/e limitations in 8ualitati-e
Sample si/e limitations in 8ualitati-e
research
research
Determining ade+uate sample si<e in Determining ade+uate sample si<e in +ualitative research is ultimately a matter +ualitative research is ultimately a matter of judgment and experience in evaluating of judgment and experience in evaluating the +uality of the information collected the +uality of the information collected against the uses to which it will be applied against the uses to which it will be applied and
and the the particparticular ular researresearch ch method method andand purposive sampling strategy employed.