I am new to SPSS, and I currently have SPSS v23 on Windows.
I am trying to do a multiple regression, but every time I try to split my independent variable, it says:
"Split variable Stage cannot be used on the METHOD subcommand. Execution of this command stops.*WARNING* REGRESSION syntax scan continues. Further diagnostics from this command may be misleading - interpret with care.Misplaced subcommand on REGRESSION command--Only the METHOD subcommand can follow a DEPENDENT subcommand. Text found: SCATTERPLOT."
My independent variable contains groups I need to look at individually (i.e., stages of an illness (1-5)).
I need help urgently, please!