关于测量模型的评价

关于测量模型的评价

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时间:2019-02-14

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1、关于测量模型的评价Table2brieflydescribesfiveexogenousconstructsandtwoendogenousconstructsalongwiththenumberofindicatorsexaminedforthemeasurementmodel.TheresultsoftheinitialCFAindicatedthatallindicatorloadingsweresignificant(p<0.001),whichimpliedthatall/-valuesexceeded

2、2.58andthustheindicatorsoneachlatentconstnactwereconsideredvalid.Theresultsofreliabilityvaluesoneachconstnictalsoindicatedthatalltheconstructsexceededtherecommendedvalues:"jobcharacteristicsn=0.87,"participativedecision-making"=0.93,"pressure/stress"=0.93,uin

3、trinsicmotivation"=0.90,'"supervisoryleadershipM=0.95,ajobsatisfactionn=0.84,and'"intenttostayM=0.91(Swanson&Horridge,2004;Diamantopoulos&Siguaw,2001).Toassessifthemeasurementmodelwasstatisticallyacceptablefivedifferentfitmeasures,aspresentedinTable3,weresele

4、ctedandreviewed(Hair,Anderson,Tatham,&Black,1998;Kline,1998).Theyincludedx2statistic,x2/df(normedx2),GFI(goodness-of-fitindex),CFI(comparativefitindex),andRMSEA(rootmeansquareerrorofapproximation).Theresultsshowedthatthefirstmeasurementmodelwasnotfullysatisfi

5、edwithp=0.000,GFI=0.76andCFI=0.88,*2/df=2.5,andRMSEA=0.08.Therefore,tobetterfitthedata,fourindicators(JC5,JC6,PD1,andSL5)basedonthesuggestionofmodificationindiceswereremovedsincetheyweretoocloselyinterrelated.Then,thesecondmeasurementmodelwasruntoseeifthefito

6、fthemodelimprovedanditwasfoundtoberelativelyacceptable:*2/df=2.5,CFI=0.90,andRMSEA=0.08.Theresultingmodelwasthentestedtoassessifthecausalrelationshipswouldexistbyspecifyingthedirectpathsbetweentheexogenousvariablesandtheendogenousvariables・ValidationoftheMode

7、l模型的确认Theobtainedmodelwasfoundtobefairlyacceptablebecausethreeofthemodelfitmeasures(at2/df,CFI,andRMSEA)weresatisfied,buttheX2statisticwasstillsignificantandGFIdidnotexceed0.90(Table3).However,theChi-squarestatistichastwoproblems:itsvaluesarenotinterpretablei

8、nastandardizedwayanditisverysensitivetosamplesize(Kline,1999,p.128).TABLE2DescriptionoftheLatentConstructsandNumberofIndicatorsLatentconstrictsandnumberofindicatorsTypeofconstiuctsJobchar

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