MEASURE Subcommand (MANOVA: Repeated Measures command)

In a doubly multivariate analysis, the dependent variables represent multiple variables measured under the different levels of the within-subjects factors. Use MEASURE to assign names to the variables that you have measured for the different levels of within-subjects factors.

  • Specify a list of one or more variable names to be used in labeling the averaged results. If no within-subjects factor has more than two levels, MEASURE has no effect.
  • The number of dependent variables on the DESIGN subcommand should equal the product of the number of cells in the within-subjects design and the number of names on MEASURE.
  • If you do not enter a MEASURE subcommand and there are more dependent variables than cells in the within-subjects design, MANOVA assigns names (normally MEAS.1, MEAS.2, and so on) to the different measures.
  • All of the dependent variables corresponding to each measure should be listed together and ordered so that the within-subjects factor named last on the WSFACTORS subcommand varies most rapidly.

Example

MANOVA TEMP1 TO TEMP6, WEIGHT1 TO WEIGHT6 BY GROUP(1,2)
  /WSFACTORS=DAY(3) AMPM(2)
  /MEASURE=TEMP WEIGHT
  /WSDESIGN=DAY, AMPM, DAY BY AMPM
  /PRINT=SIGNIF(HYPOTH AVERF)
  /DESIGN.
  • There are 12 dependent variables: six temperatures and six weights, corresponding to morning and afternoon measurements on three days.
  • WSFACTORS identifies the two factors (DAY and AMPM) that distinguish the temperature and weight measurements for each subject. These factors define six within-subjects cells.
  • MEASURE indicates that the first group of six dependent variables correspond to TEMP and the second group of six dependent variables correspond to WEIGHT.
  • These labels, TEMP and WEIGHT, are used on the output requested by PRINT.
  • WSDESIGN requests a full factorial within-subjects model. Because this is the default, WSDESIGN could have been omitted.