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Multiple Imputation

Courtney B Francis

Courtney B FrancisTue September 20, 2022 12:03 AM

  • 1.  Multiple Imputation

    Posted Mon September 19, 2022 01:04 PM
    Hello!

    I have attempted to run Multiple Imputation on my dataset. After the imputation ran I still had missing data in the pooled data set.

    Do you know what might have caused this issue? I'm not sure if this is common or if there is an issue in my syntax or Data that may be creating this issue. Please see my syntax below:

    SET THREADS = 4.
    USE ALL.
    FILTER OFF.
    SORT CASES BY YEAR SUBJID.
    EXECUTE.
    SET SEED=20220913.
    MULTIPLE IMPUTATION
        INSTDICO
        INSTCONT
        WHITE
        BLACK
        Brown
        Black_Brown_Total
        BLACK_BROWN_AUTISM
        MINORITIZED_POC
        RECODEAUTISM
        HSGPA
        COLLEGE_INVOLVEMENT
        HABITS_OF_MIND_GRP
        ACADEMIC_SELFCONCEPT_GRP
        SOCIAL_SELFCONCEPT_GRP
        DEGASPDICO
        SEX
        FIRSTGEN
        INCOME
        ACT_FINAL
        BLACK_BROWN_XINCOME
        BLACK_BROWN_XHSGPA
        BLACK_BROWN_XHOMG
        BLACK_BROWN_XCOLLINV
        BLACK_BROWN_XASCG
        BLACK_BROWN_XSSCG
        BLACK_BROWN_XACT
        BLACK_BROWN_XSEX
        BLACK_BROWN_XFIRSTGEN
        BLACK_BROWN_XDEGASP
        WHITE_XINCOME
        WHITE_XHSGPA
        WHITE_XHOMG
        WHITE_XCOLLINV
        WHITE_XASCG
        WHITE_XSSCG
        WHITE_XACT
        WHITE_XSEX
        WHITE_XFIRSTGEN
        WHITE_XDEGASP
        AUTISM_XINCOME
        AUTISM_XHSGPA
        AUTISM_XHOMG
        AUTISM_XCOLLINV
        AUTISM_XASCG
        AUTISM_XSSCG
        AUTISM_XACT
        AUTISM_XSEX
        AUTISM_XFIRSTGEN
        AUTISM_XDEGASP
        AUTISM_XBLACK_BROWN
        AUTISM_XWHITE
        RECODE_DISAB01
        RECODE_DISAB02
        RECODE_DISAB04
        RECODE_DISAB05
        RECODE_DISAB06
        RECODE_DISAB07
      /ANALYSISWEIGHT STUDWGT
      /IMPUTE METHOD=FCS MAXITER= 100 NIMPUTATIONS=10 SCALEMODEL=LINEAR INTERACTIONS=NONE
        SINGULAR=1E-012 MAXPCTMISSING=NONE MAXMODELPARAM =10000
    /CONSTRAINTS BLACK_BROWN_XINCOME( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XHSGPA( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XHOMG( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XCOLLINV( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XASCG( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XSSCG( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XACT( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XSEX( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XFIRSTGEN( ROLE=IND)
    /CONSTRAINTS BLACK_BROWN_XDEGASP( ROLE=IND)
    /CONSTRAINTS WHITE_XINCOME( ROLE=IND)
    /CONSTRAINTS WHITE_XHSGPA( ROLE=IND)
    /CONSTRAINTS WHITE_XHOMG( ROLE=IND)
    /CONSTRAINTS WHITE_XCOLLINV( ROLE=IND)
    /CONSTRAINTS WHITE_XASCG( ROLE=IND)
    /CONSTRAINTS WHITE_XSSCG( ROLE=IND)
    /CONSTRAINTS WHITE_XACT( ROLE=IND)
    /CONSTRAINTS WHITE_XSEX( ROLE=IND)
    /CONSTRAINTS WHITE_XFIRSTGEN( ROLE=IND)
    /CONSTRAINTS WHITE_XDEGASP ( ROLE=IND)
    /CONSTRAINTS AUTISM_XINCOME( ROLE=IND)
    /CONSTRAINTS AUTISM_XHSGPA( ROLE=IND)
    /CONSTRAINTS AUTISM_XHOMG( ROLE=IND)
    /CONSTRAINTS AUTISM_XCOLLINV( ROLE=IND)
    /CONSTRAINTS AUTISM_XASCG( ROLE=IND)
    /CONSTRAINTS AUTISM_XSSCG( ROLE=IND)
    /CONSTRAINTS AUTISM_XACT( ROLE=IND)
    /CONSTRAINTS AUTISM_XSEX( ROLE=IND)
    /CONSTRAINTS AUTISM_XFIRSTGEN( ROLE=IND)
    /CONSTRAINTS AUTISM_XDEGASP ( ROLE=IND)
    /CONSTRAINTS AUTISM_XBLACK_BROWN( ROLE=IND)
    /CONSTRAINTS AUTISM_XWHITE( ROLE=IND)
     /CONSTRAINTS DEGASP  (RND=1 MIN=0 MAX=1)
      /MISSINGSUMMARIES NONE
      /IMPUTATIONSUMMARIES MODELS DESCRIPTIVES
      /OUTFILE IMPUTATIONS=courtney_syntax_9_14_22.sav FCSITERATIONS=iteration_history. 

    ------------------------------
    Courtney B Francis
    ------------------------------

    #SPSSStatistics


  • 2.  RE: Multiple Imputation

    Posted Mon September 19, 2022 01:27 PM
    The MI output tables indicate if values could not be imputed for some variables.  Also, note that the first dataset in the replications is the original data.

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