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SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

SPSS® 12.0 Command Syntax Reference

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CONDITIONAL and UNCONDITIONAL Keywords<br />

MANOVA: Multivariate 881<br />

When several analysis groups are specified on a single ANALYSIS subcommand, you can control<br />

how each list is to be processed by specifying CONDITIONAL or UNCONDITIONAL in the parentheses<br />

immediately following the ANALYSIS subcommand. The default is UNCONDITIONAL.<br />

UNCONDITIONAL Process each analysis group separately, without regard to other lists.<br />

This is the default.<br />

CONDITIONAL Use variables specified in one analysis group as covariates in subsequent<br />

analysis groups.<br />

• CONDITIONAL analysis is not carried over from one ANALYSIS subcommand to another.<br />

• You can specify a final covariate list outside the parentheses. These covariates apply to<br />

every list within the parentheses, regardless of whether you specify CONDITIONAL or<br />

UNCONDITIONAL. The variables on this global covariate list must not be specified in<br />

any individual lists.<br />

Example<br />

MANOVA A B C BY FAC(1,4) WITH D, E<br />

/ANALYSIS = (A, B / C / D WITH E)<br />

/DESIGN.<br />

• The first analysis uses A and B as dependent variables and uses no covariates.<br />

• The second analysis uses C as a dependent variable and uses no covariates.<br />

• The third analysis uses D as the dependent variable and uses E as a covariate.<br />

Example<br />

MANOVA A, B, C, D, E BY FAC(1,4) WITH F G<br />

/ANALYSIS = (A, B / C / D WITH E) WITH F G<br />

/DESIGN.<br />

• A final covariate list WITH F G is specified outside the parentheses. The covariates<br />

apply to every list within the parentheses.<br />

• The first analysis uses A and B, with F and G as covariates.<br />

• The second analysis uses C, with F and G as covariates.<br />

• The third analysis uses D, with E, F, and G as covariates.<br />

• Factoring out F and G is the only way to use them as covariates in all three analyses, since<br />

no variable can be named more than once on an ANALYSIS subcommand.<br />

Example<br />

MANOVA A B C BY FAC(1,3)<br />

/ANALYSIS(CONDITIONAL) = (A WITH B / C)<br />

/DESIGN.<br />

• In the first analysis, A is the dependent variable, B is a covariate, and C is not used.<br />

• In the second analysis, C is the dependent variable, and both A and B are covariates.

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