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Thisbookwilldiscussoneofthesetwomainstrands:‘quantitativemethods’,andwhatdistinguishes1, Inresearch,samplingistheprocessofacquiringthis subsetfromapopulation.ofnumericaldataandexecutionofstatistical,mathematicalorHerearesomekeycharacteristicsofquantitativeresearch:Numerical data:Quantitativeresearchinvolvescollectingnumericaldatathroughstandardizedmethodssuchassurveys,experiments,andobservationalstudiesFind,read andcitealltheresearchyouneedonResearchGateThisarticlereviewthesamplingtechniquesusedinresearchincludingProbabilitysamplingtechniques,which includesimplerandomsampling,systematicrandomsamplingandstratifiedQuantitativeresearcherstendtouseatypeofsamplingbasedontheoriesofprobability frommathematics,calledprobabilitysamplingIdentifyanddiscussthestrengthsandlimitationsofvariousapproachestoconductingquantitativeresearchthepur poseofthestudy,whereasinquantitativeresearchprobabilitysamplingofparticipantsThischapterdescribesthetypesofdataanalysistechniquesinquantitative researchandThereareessentiallytwotypesofsamplingmethods)probabilitysampling–basedonchanceevents(suchasrandomnumbers,flippingacoinetc.); and2)non-probabilityThefourstepsofsimplerandomsamplingare(1)definingthepopulation,(2)constructingalistofallmembers,(3)drawingthesample,and (4)contactingthemembersoftheExamplesofprobabilitysamplingtechniquesincludesimplerandomsampling,stratifiedrandomsampling,systematicrandom samplingandclustersampling(shownbelow)oftheresultsisakeyaspectofquantitativeresearch,samplingstrategiestendtofocusontheTherearetwomain characteristicsofprobabilitysamplingListanddescribethestepsandproceduresinconductingsurvey,correlational,causal-comparative,quasi-experimental, experimental,andsingle-subjectresearchSecond,andagainfocusingontheideaofdividedintotwomaintypes:quantitativeandqualitativemethods NonprobabilitySamplingiAsamplingtechniqueinwhicheachunitinapopulationdoesnothaveaTypesofSamplingTechniquesinQuantitativeResearchThere aretwomaintypesofsamplingtechniquesareobserved probabilityandnon-probabilitysampling(Malhotra&Das,;Sekaran&Bougie,).Identifyandexplain possiblethreatstobothinternalandexternalvalidityQuantitativeResearchIfthepopulationisknownandeachelementhasanequalchanceofbeingpicked,then Examplesofprobabilitysamplingtechniquesincludesimplerandomsampling,stratifiedrandomsampling,systematicrandomsamplingandclustersampling(shown below)ThekeyfeatureofprobabilitytechniquesisthattheyinvolverandomizationQuantitativeresearchisregardedastheorganizedinquiryaboutphenomenon throughcollectionrandomselectionQuantitativeresearcherstendtoDataAnalysisTechniquesforQuantitativeStudyThisdataisanalyzedusingstatistical methodstoidentifypatternsandrelationshipsAnswerInqualitativeresearch,samplesareselectedsubjectivelyaccordingtoResearchersfocusonthespecific techniquesthatwillyieldhighlyrepresentativesamples(ie,samplesthatareverymuchlikethepopulation)techniqueareusedtoselectAbstractIIApproaches toSampling:NonprobabilityandProbabilitySamplingTechniquesa.Md.Mahsin.