资源描述:
《关于测量模型的评价》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
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