Hypothesis Between Quantitative and Qualitative Research

8/9/2019 Hypothesis Between Quantitative and Qualitative Research

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Hypothesis :

BetweenQuantitative and

Qualitative Research

By :

Hela Benzina


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Plan :Defnition o hypothesisHypothesis in qualitative

researchHypothesis in quantitativeresearch

The dierence between thetwo typesonclusion


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The defnition o hypothesis :A hypothesis may be defned as a proposition or set

o propositions set orth as an explanation o theoccurrence o some specifc group o phenomena .

A research hypothesis is a predictive statement

capable o being tested by scientifc methods .

It is an assuption or or a supposition which has to beproved or disproved .

hould be precised ! concised ! capable o beingtested and able to relate to at least " variables

It is a ormal #uestion that has to be resolved or a

researcher .


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Quantitative Research :

$uantitative : deductive % reasoning romgeneral theories to specifc instances.&esearchers are supposed to be ob'ective .

et to test hypotheses ! loo( at cause )

e*ect and ma(e predictions . +arrow,angle lens - tests a specifc

hypotheses

b'ective : /escribe! explain! ) predict

0ethod : 1onfrmatory or top,down : theresearcher tests the hypothesis and theorywith the data .

It is the study o specifc variables and not

the study o the whole .


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Hypotheses are predictions the researcher ma(esabout the expected relationships among variables.

2esting o hypotheses employs statistical procedures in

which the investigator draws inerences about thepopulation rom a study sample. Hypotheses are usedoten in experiments in which investigators comparegroups

b'ectives : they oten appear in proposals or unding .

2he most rigorous orm o #uantitative research ollowsrom a test o a theory and the specifcation o research#uestions or hypotheses that are included in the theory.

Hypothesis script : 2here is no signifcant di*erencebetween !the control and e"peri#ental $roups on the

independent variable% on !dependent variable%. 3 2o eliminate redundancy! write only research #uestions

or hypotheses ! not both! unless the hypotheses build on

the research #uestions 4discussion ollows 5 .


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Hypothesis are used to state the relationship betweentwo variables and may be stated as :

+ull hypotheses : no relationship between twovariables.

+ondirectional hypotheses : we don6t (now or won6tspeculate about the direction o the relationshipbetween two variables.

/irectional hypotheses :7e state the direction o therelationship between two variables.

&elationships speciy:

How the value o one variable changes in relation toanother.

0ay be either positive! negative! or the two variablesmay not have any relationship to one another.

Are not necessarily correlations. The type ofrelationship or association among variables isdetermined by the level of measurement of

each of the two variables.


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Qualitative research : $ualitative :inductive method- incorporates values and perspectives

o both researcher and participants .

8xploratory or bottom%up: the researcher generates a newhypothesis and theory rom the data collected .

$ualitative research answers 9how and 9why #uestions or process .

$ualitative researchers pose research #uestions :

+ot ob'ectives

+ot hypotheses

2wo types o #ualitative research #uestions to ocus a study;s

purpose:1entral #uestion

broad #uestion that as(s or exploration o the centralphenomenon

ub#uestions

$uestions that narrow the ocus o the study .


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As( . Be open,ended without reerence to the literature

E. peciy the participants and research site 4unless statedpreviously5

A cript or 7riting a $ualitative 1entral $uestion :

!How or &hat% is the !'story or( or narrativeresearch) '#eanin$ o( the pheno#enon or pheno#enolo$y) 'theory that e"plains the process o( or $rounded theory) 'culture*sharin$ pattern( orethno$raphy) 'issue( in the 'case( or case study% o

!central pheno#enon% or !participants% at !researchsite%.


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Quantitave Have at least two variables

Is used to prove or disprove whetherthere is a causal relationship betweentwo variables.

1an be expressed as a prediction or an

expected uture outcome. Is logically lin(ed to a research #uestion

or theory

Hypothesis are used to state therelationship between two variables : Howthe value o one variable changes inrelation to another.

$uantitative research ocuses on causalrelationships and their impact4outcomes5. 2hey also answer 9what#uestions.

Analysis uses statistics, tables, and charts anddiscusses how what they show relates to thehypothesis.

Analysis involves extracting themes fromevidence and organizing data into themes andcategories to present a coherent, consistentpicture.

Hypotheses are used oten inexperiments in which investigatorscompare groups

It is the study o specifc variables andnot the study o the whole

Qualitative

Involves interpretation o a situation!set o behaviors! or a setting.

Analysis must ta(e place within acontext % di*erent fndings mayaccrue in di*erent settings or

situations. /i*erent researchers may view the

same situation and obtain di*erentresults.

Assumes there is no one right orwrong answer.

1omes rom a particular set oassumptions or theories about howresearch should ta(e place.

$ualitative research answers 9howand 9why #uestions or process

Csually ocus on one concept or idea.

Fenerally don6t ma(e comparisonsamong groups.

1an be based on hunches or personalexperience.

Csually pertain to the actions orperceptions o participants.

tudy o the whole! not variables.


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1onclusion :

Hypothesis in #ualitative research isset to understand ) interpret

social interactions. However ! in

#uantitative its purpose is to loo(at cause ) e*ect! ) ma(e

predictions.

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Hypothesis Between Quantitative and Qualitative Research