27.03.2013 Views

SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Example<br />

MANOVA: Repeated Measures 887<br />

MANOVA SCORE1 SCORE2 SCORE3 BY GROUP(1,4)<br />

/WSFACTORS=ROUND(3)<br />

/CONTRAST(ROUND)=DIFFERENCE<br />

/CONTRAST(GROUP)=DEVIATION<br />

/PRINT=TRANSFORM PARAM(ESTIM).<br />

• This analysis has one between-subjects factor, GROUP, with levels 1, 2, 3, and 4, and one<br />

within-subjects factor, ROUND, with three levels that are represented by the three dependent<br />

variables.<br />

• The first CONTRAST subcommand specifies difference contrasts for ROUND, the withinsubjects<br />

factor.<br />

• There is no WSDESIGN subcommand, so a default full factorial within-subjects design is<br />

assumed. This could also have been specified as WSDESIGN=ROUND, or simply<br />

WSDESIGN.<br />

• The second CONTRAST subcommand specifies deviation contrasts for GROUP, the<br />

between-subjects factor. This subcommand could have been omitted because deviation<br />

contrasts are the default.<br />

• PRINT requests the display of the transformation matrix generated by the within-subjects<br />

contrast and the parameter estimates for the model.<br />

• There is no DESIGN subcommand, so a default full factorial between-subjects design is<br />

assumed. This could also have been specified as DESIGN=GROUP, or simply DESIGN.<br />

PARTITION for WSFACTORS<br />

The PARTITION subcommand also applies to factors named on WSFACTORS. (See the<br />

PARTITION subcommand on p. 849 in MANOVA: Univariate.)<br />

WSDESIGN Subcommand<br />

WSDESIGN specifies the design for within-subjects factors. Its specifications are like those<br />

of the DESIGN subcommand, but it uses the within-subjects factors rather than the betweensubjects<br />

factors.<br />

• The default WSDESIGN is a full factorial design, which includes all main effects and all<br />

interactions for within-subjects factors. The default is in effect whenever a design is<br />

processed without a preceding WSDESIGN or when the preceding WSDESIGN subcommand<br />

has no specifications.<br />

• A WSDESIGN specification can include main effects, factor-by-factor interactions, nested<br />

terms (term within term), terms using the keyword MWITHIN, and pooled effects using the<br />

plus sign. The specification is the same as on the DESIGN subcommand but involves only<br />

within-subjects factors.<br />

• A WSDESIGN specification cannot include between-subjects factors or terms based on<br />

them, nor does it accept interval-level variables, the keywords MUPLUS or CONSTANT,<br />

or error-term definitions or references.<br />

• The WSDESIGN specification applies to all subsequent within-subjects designs until<br />

another WSDESIGN subcommand is encountered.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!