kuliah 2 - credibility2015

7/21/2019 Kuliah 2 - Credibility2015

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VALIDITY &

RELIABILITY


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Qualitative researchers study thingsin their natural settings, attemptingto make sense of phenomenon orinterpret phenomenon


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According to qualitativeresearch:

Researchers can only come tounderstand the social world throughparticipants interpretations

interpretative approach

Reality is diverse and multifaceted!he goal is to get a picture of thisreality !o measure means to reduce it and therefore lose meaning


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"R#!#"$ %& Q'A(#!A!#)* R*$*AR"+

(ack of reliaility and validity of its-ndings


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BASES OF VALIDITY IN

QUANTITATIVE RESEARCH

BASES OF VALIDITY IN

QUALITATIVE RESEARCH

Controllability Natural

Isolation, ontrol, !ani"ulation o#$ariabl%s

T&i' (%sri"tion

R%"liability Uni)u%n%ss

*r%(itabilityE!%r+%n%, un"r%(itability

%n%rali-ability Uni)u%n%ss

Cont%.t/#r%%(o! Cont%.t/boun(%(n%ss

Fra+!%ntation an( ato!i-ation Holis!

Ran(o!i-ation o# sa!"l%s *ur"osi$% sa!"l%0no sa!"lin+


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BASES OF RELIABILITY IN

QUANTITATIVE RESEARCH

BASES OF RELIABILITY IN

QUALITATIVE RESEARCH

R%liability D%"%n(ability

D%!onstrability Trust5ort&in%ss

Stability an( r%"liability Stability an( r%"liability

*arall%l #or!s *arall%l #or!s

Cont%.t/#r%%(o! Cont%.t/s"%i#iity

Ob1%ti$ity Aut&%ntiity an( on#ir!ability

Co$%ra+% o# (o!ain Co!"r%&%nsi$%n%ss o# situation

V%ri#iation o# (ata an( analysis Hon%sty an( an(our

Ans5%rin+ r%s%ar& )u%stions D%"t& o# r%s"ons%


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)A(#.#!/

Validity in qualitative research often

concerns: honesty, richness, authenticity,

depth, scope, subjectivity, strength of

feeling, catching uniqueness, idiographic

statements.


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)A(#.#!/ #0 Q'A(#!A!#)*

R*$*AR"+

1uch less direct than in quantitativeresearch

Realist prospective

#nductive research

0ot to eliminate the validity threat

2ant to "(AR#&/


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RELIABILITY IN QUALITATIVE

RESEARCH

Cr%(ibility

N%utrality

Con#ir!ability D%"%n(ability

Consist%ny

A""liability Trust5ort&in%ss

Trans#%rability


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)A(#.#!/ #0 Q'A(#!A!#)* R*$*AR"+

Validity in qualitative research cumulative, communicative,arumentative, ecoloical!

"ih #ecause$ Data o#tained %rom the eld

'le(i#le in data collection

)ommunication is im*ortant


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!ype of validity

.*$"R#3!#)* )A(#.#!/

#0!*R3R*!#)* )A(#.#!/

!+*%R*!#"A( )A(#.#!/ 4*0*RA(#5A6##(!/

*)A('A!#%0


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.escriptive validity

!he factual accuracy of the accountas reported y the researcher reportage

refer to a speci-c event orsituation

they could e attained with

intersu7ective agreement

0o account can include everythingwith accuracy


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#nterpretive )alidity

!he degree to which the participantsviewpoints, thoughts, intentions ande8periences are accurately understood andreported y the qualitative researcher

9emic account is a description ehavior orelief in terms meaningful to the actor that is,an emic account in culture speci-c

9etic account is a description of a ehavior orelief y an oserver, in terms that can eapplied to other cultures that is, an eticaccount is 9culturally neutral


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!heoretical )alidity

!he degree to which a theory ortheoretical e8planation developedfrom a research study -ts the data

and is, therefore, credile anddefensile


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4enerali;aility e8ternal validity

*8ternal validity is important whenthe researcher wants to generatefrom a set of research -ndings to

other people settings, and times

Ty*ically enerali+a#ility is notthe maor *ur*ose o% qualitative

research 3rovides a more persuasive

argument


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*valuative )alidity

!he degree to which a researcher is7usti-ed in concluding that anoserved relationship is causal 1ore

often, qualitative researchers areconcerned with studying andunderstanding a process rather than

identifying cause and e


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A study is

trust-orthy i%,and only i%, thereader o% the

reseach re*ort

ude it to #e so./Rol%e, 0112=


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!riangulation > a cross?checking ofinformation and conclusions in research,rought aout y the use of multiple

procedures or sources #f there is agreementetween these, there is support of theinterpretation of data

'sing triangulation does not mean you get acertain truth, ut you get closer to it re@e8ivity is still necessary


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*8ample of triangulation

techniques:

1ethod triangulation "omparing data that comefrom the use of di


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Qualitative Research Methods:

Trianulation

1ethod to enhancethe validity reliaility of

qualitative research *nhances accuracy

of interpretation

"on-rms that thedata collected is notdue to chance orcircum?stances


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Qualitative Research Design:

Trianulation

Coll%t (ata #ro!

!ulti"l% sour%s

Coll%t (ata in!ulti"l% 5ays #ro!

sub1%ts

Coll%t (i##%r%nt'in(s o# (ata in

!ulti"l% 5ays #ro!

!ulti"l% sub1%ts

For example:

4ay int%r$i%5 t%a&%rs,

"rini"als 6 "ar%nts

4ay int%r$i%5 6

obs%r$% stu(%nts

4ay r%$i%5 stu(%ntr%or(s, int%r$i%5

t%a&%rs, obs%r$%

stu(%nts


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Multiple data

sources

Multiple

kinds of data

Multiple data

collection strategies

Subjects

(data sources)

Data collection

strategies

Kinds of data

Qualitative Research Design:

Trianulation


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*8ample of triangulation

techniques:

1ethod triangulation "omparing data that comefrom the use of di


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"riteria for 7udging quantitative andqualitative research

"rediility #nternal validity!rustworthyness +ow elievale are the research conclusionsB "onclusions and interpretations are

6readth and deapth is gathered correct as variales are well de-ned and measures well controlled

!ransferaility 4enerali;aility!he conte8t is well descried as it is unlikely that !he research conclusions can e applied toit wont have an impact on the -ndings .i

kuliah 2 - credibility2015

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