when to use a z score in spss when using matched procedure should data be based on age when to set a time variable in spss when using the mix procedure in spss should my 'time' variable be set as if you are using 'time' as a binary variable, it should be __________. how do i code a z score how to code time on spss spss how to code duration is z the same as age when coding for age in spss why does it be z scores spss how do i code a time variable how to code duration of visit in spss when does spss need a time variable when setting time a variable for spss what is the coded variable of the age in spss when using a mixture spss should the variable avg be set as how to code duration when using spss how to code time when you set your time variable as a scale in sputsky, the results of the fit-by-size procedure will show: spss what is the x code for time