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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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MANOVA: Multivariate 877<br />

SINGLEDF Significance tests for the single degree of freedom making up each effect for<br />

ANOVA tables. Results are displayed separately corresponding to each<br />

hypothesis degree of freedom. See MANOVA: Univariate.<br />

• If neither PRINT nor NOPRINT is specified, MANOVA displays the results corresponding to<br />

MULTIV and UNIV for a multivariate analysis not involving repeated measures.<br />

• If you enter any specification except BRIEF or SINGLEDF for SIGNIF on the PRINT<br />

subcommand, the requested output is displayed in addition to the default.<br />

• To suppress the default, specify the keyword(s) on the NOPRINT subcommand.<br />

TRANSFORM Keyword<br />

The keyword TRANSFORM specified on PRINT displays the transposed transformation<br />

matrix in use for each subsequent design. This matrix is helpful in interpreting a multivariate<br />

analysis in which the interval-level variables have been transformed with either<br />

TRANSFORM or WSFACTORS.<br />

• The matrix displayed by this option is the transpose of the transformation matrix.<br />

• Original variables correspond to the rows of the matrix, and transformed variables<br />

correspond to the columns.<br />

• A transformed variable is a linear combination of the original variables using the<br />

coefficients displayed in the column corresponding to that transformed variable.<br />

HOMOGENEITY Keyword<br />

In addition to the BARTLETT and COCHRAN specifications described in MANOVA: Univariate,<br />

the following test for homogeneity is available for multivariate analyses:<br />

BOXM Box’s M statistic. BOXM requires at least two dependent variables. If there is only<br />

one dependent variable when BOXM is requested, MANOVA prints Bartlett-Box F<br />

test statistic and issues a note.<br />

PLOT Subcommand<br />

In addition to the plots described in MANOVA: Univariate, the following is available for<br />

multivariate analyses:<br />

ZCORR A half-normal plot of the within-cells correlations among the dependent variables.<br />

MANOVA first transforms the correlations using Fisher’s Z transformation. If errors<br />

for the dependent variables are uncorrelated, the plotted points should lie close to<br />

a straight line.<br />

PCOMPS Subcommand<br />

PCOMPS requests a principal components analysis of each error matrix in a multivariate<br />

analysis. You can display the principal components of the error correlation matrix, the error

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