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Mplus Users Guide v6.. - Muthén & Muthén

Mplus Users Guide v6.. - Muthén & Muthén

Mplus Users Guide v6.. - Muthén & Muthén

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CHAPTER 15WTSCALEThe WTSCALE option is used with TYPE=TWOLEVEL to adjust theweight variable named using the WEIGHT option. WithTYPE=TWOLEVEL, the WEIGHT option is used to identify thevariable that contains within-level sampling weight information.The WTSCALE option has the following settings: UNSCALED,CLUSTER, and ECLUSTER. CLUSTER is the default.The UNSCALED setting uses the within weights from the data set withno adjustment. The CLUSTER setting scales the within weights fromthe data set so that they sum to the sample size in each cluster. TheECLUSTER setting scales the within weights from the data so that theysum to the effective sample size (Pothoff, Woodbury, & Manton, 1992).The WTSCALE option is specified as follows:WTSCALE = ECLUSTER;where scaling the within weights so that they sum to the effective samplesize is chosen.BWEIGHTThe BWEIGHT option is used with TYPE=TWOLEVEL to identify thevariable that contains between-level sampling weight information.The BWEIGHT option is specified as follows:BWEIGHT = bweight;where bweight is the variable that contains between-level samplingweight information.BWTSCALEThe BWTSCALE option is used in with TYPE=TWOLEVEL to adjustthe between-level sampling weight variable named using the BWEIGHToption.502

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