Quantitative 140328140854 Phpapp02

8/20/2019 Quantitative 140328140854 Phpapp02

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Curriculum Designed by Dorothy Kropf

Quantitative Studies


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Instructor: Dorothy Kropf, M.A.

Doctoral Student of Education at Walden University

Specialization: Educational echnolo!y

Area of Interest: "esearch and #i!her Educational Issues

Module $


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In a %uantitative research desi!n, the researcherposes several hypotheses to analyze the cause and

e&ects of speci'c varia(les in order to predict ande)plain certain pheno*enon +res-ell, //01.

2uantitative "esearchDesi!n


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o conduct a study, you *ust have a theoretical fra*e-or3.What are you (asin! your research on4

heoretical 5ra*e-or3


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What ne- %uestions or o(servations do you have4

Do you -ant to investi!ate a pheno*enon4

Do you -ant to see if an intervention that -or3ed for a s*allschool -ill -or3 in a lar!er school4

Deductive "easonin!


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Start -ith a research pro(le*.

Deductive "easonin!


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Start -ith a research pro(le*. A research pro(le* is a%uestion that sti*ulates a response throu!h scienti'c in%uiry.

Deductive "easonin!


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2uantitative research desi!ns start -itho(servations that need further e)planations andtheories. hey *a3e predictions that canpotentially ans-er the hypotheses.



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2uantitative research desi!ns are structurallyscienti'c *ethods, utilizin! deductive reasonin! infor*s of hypotheses +6rice 7 8s-ald, //01.



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he outco*es *easured in a %uantitative researchdesi!n are factual and (ased on data9driveninfor*ation fro* speci'c *easure*entinstru*ent+s1 rather than fro* perceptions+5ran3fort9ach*ias 7 ach*ias, //;1.



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he overarchin! !oal of a %uantitative researchdesi!n is to dra- relationships (et-een dependentand independent varia(les, there(y assistin! theresearcher in developin! !eneralizations thate)plain or predict certain pheno*enon +res-ell,//01.



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Variables and Unit of Analysis

Accordin! to 5ran3fort9ach*ias 7 ach*ias +//;1,

=the varia(le -hose chan!es the researcher -ishes toe)plain is 3no-n as the dependent varia(le, -hile thevaria(le the researcher thin3s induces or e)plains thechan!e is the independent varia(le> +p. ?01.


Wo-@ My 3ite ies hi!her-hen the -ind (lo-s harder@


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here are B types of *easures in %uantitative research desi!ns:

$. o*inal

. 8rdinal

B. Interval

?. "atio



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E)a*ple of o*inal *easures:

/$ C 5e*ale

/ C Male



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E)a*ple of ordinal *easures:

College Education

$Cso*e colle!e courses ta3en

CAssociates De!ree conferred

BCachelors De!ree conferred

?C Masters De!ree conferred

FC Doctoral De!ree conferred



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E)a*ple of Intervals:

est Scores:

A: C0/9$//G

C ;/9;0G

C HF9H0G

DC H/9H?G

5C 0G and (elo-



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Types of Quantitative Research

Designs


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E)peri*ental Desi!n

A desi!n in -hich the researcher controls and

*anipulates varia(les to deter*ine cause and e&ects.



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alanced E)peri*ental Desi!n: allo-s =e%ualnu*(er of o(servations> despite of therando*ness of the study +University of e)as at

Austin, n.d.1



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orrelational "esearch Desi!n: A study that e)a*inesthe relationship (et-een varia(les and outco*es.

#ypothetical E)a*ple: here is a stron! correlation +orlin31 -ith inco*e and the type of car one drives.A!ain, this is only hypothetical J the *ore inco*e asalesperson *a3es, the nicer his car....


i i h


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2uasi9e)peri*ental Desi!n:

he researcher has control over the selected participants andthe selected instru*entation. #o-ever, the researcherdoesnt have control over -ho -ill (e e)posed and -hen -illthe e)posure occur.


2 i i h


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Sin!le case research:

ontinuous study of hu*an (ehavior over ti*e. E)a*ple: an

intervention study


2 i i " h


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Meta9analysis research

he researcher studies the a!!re!ation of results -ith otherrelevant studies.

his type of research usually e)plores the e&ectiveness of aspeci'c *ethod +5ran3fort9ach*ias 7 ach*ias, //;1.

.



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6roperties or attri(utes a researcher -ould li3e to identify and*easure.

ypes of varia(les:

• Independent varia(le

• Dependent varia(le

• ontrol varia(le

aria(les


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Independent varia(le is the varia(le that the

"esearcher has control over. his *eans that this varia(le can(e *anipulated.

Independent aria(le


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Is not a varia(le that a researcher can *anipulate. Instead, a

dependent varia(le can (e o(served and *easured as a resultof the variations of the independent varia(le.

Dependent aria(le


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A varia(le that the researcher -ill 3eep

constant.

ontrol aria(le


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• To prepare for module 2:

• Review the terminologies in this module then decideon a quantitative study you would like to conduct

• !dentify what type of research design it is" what yourvariables are" and your research questions

End ofModule


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res-ell, L. W. +//01. Research design: #ualitative" quantitative" and mi$ed methodsapproaches +Brd ed.1. housand 8a3s, A: Sa!e 6u(lications.

5ran3fort9ach*ias, ., 7 ach*ias, D. +//;1. Research methods in the socialsciences +Hth ed.1. e- or3: Worth 6u(lishers.

6rice 7 8s-ald +//;1. %$perimental research "etrieved fro*http:NNpsych.csufresno.eduNpsy$??NontentNDesi!nNypesNe)peri*ental.ht*l

6rice 7 8s-ald +//01. Developmental research "etrieved fro*http:NNpsych.csufresno.eduNpsy$??NontentNDesi!nNypesNe)peri*ental.ht*l

Si*on, M. +n.d.1 #uantitative research: The &'( side in the paradigm war O6o-er6ointslidesP. "etrieved fro* https:NN---.!oo!le.co*Nurl4saCt7rctCQ7%C7esrcCs7sourceC-e(7cdC$7vedC/DI25QA8Ao7urlChttpGBAG5G5*y-e(.ce(rid!e.netG53i*(lu*G52uantitativeGF/"esearchpresentation.ppt7eiC)0cpU0RhMoHeoAS!Fo-D-7us!CA52QnysB2t-Fs!nIyIvd;r%c%*--7si!CEu*!"rDQRvWR"KKdtl-!

University of e)as at Austin +n.d.1. The statistics glossary "etrieved fro* University of e)as at Austin -e(site: http:NN---.stats.!la.ac.u3N!lossaryN4%CnodeNF?B

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