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1、OnlineResourcesfor:Bowen,N.K.&Guo,S.(2011).StructuralEquationModeling.OxfordUniversityPress.Onlineresourcesaccompanyingbook.Pleaseseedisclaimer,andciteappropriately.UsingMplusforSEMDisclaimer:MplusisapowerfulSEMprogram.ManyoptionsavailableinMplusarenotcoveredhe
2、re.Informationontheoptionsthatarecoveredisbasedonourexperienceswithrecentversionsoftheprogram.Theseguidelinesarenotmeanttobecomprehensiveorexhaustive.TheymaynotreflectupcomingversionsoftheprogramorrecommendationsoftheMplusprogramdevelopers.SeealsotheMpluswebsit
3、e:http://www.statmodel.com/index.shtmlforMplusmanualandprogramupdates,andconsultthein-programhelpfeature.C.1.PreparingandSavingDataFilesforUsewithMplusThissectionprovidesinformationonpreparingdatafilesforMplus.Mplushasmanyoptionsrelatedtodataandvariables.Thepre
4、sentationisnotexhaustive;wecoverjustsomeofthemostcommonsituationssocialworkresearchersmayencounter.C.1.aMissingValuesAspartofthepreparationofdataforSEManalysisinMplus,usersmustdesignatewhichsymbolsornumbersintheirdatasetsrepresentmissingvalues.Optionsformissing
5、valuesinclude:period(.),asterisk(*),blank(),andnumericvaluesthatarenotamongvalidoptionsforavariable.Becauseofrestrictionsontheuseofnon-numericflags(e.g.,onlyoneperdataset),werecommendusingnumericflags.Eitherpositiveornegativenumericvaluescanbeusedasmissingvalue
6、flags;justbesurethatthevalueusedforanyonevariabledoesnotoverlapwithitspotentialvalidvalues.InMplus,morethanonemissingflagmayapplytoonevariable,onemissingvalueflagcanbeusedforallvariables,ordifferentflagscanbeusedtodesignate28missingvaluesindifferentvariables.Th
7、erefore,usersdonothavetoalterexistingdatafilestomakeallmissingvaluesthesame.DifferenttreatmentsofvariableresponseoptionscanbespecifiedinMpluswithoutmakingchangestotheoriginaldatafile.C.1.bSavingFilesforUseinMplusBeforesavinganinputdatafile,alldatacleaningshould
8、becompleted,anynecessarydatatransformationsandrecodesshouldbecompleted,andmissingvaluesshouldberecodedtooneoftheoptionsMplusreads.Filesmaycontainvariablesthatwillnotbeinclud