SPSS® 12.0 Command Syntax Reference

ANOVA
ANOVA [VARIABLES=] varlist BY varlist(min,max)...varlist(min,max)
[WITH varlist] [/VARIABLES=...]
[/COVARIATES={FIRST**}]
{WITH }
{AFTER }
[/MAXORDERS={ALL** }]
{n }
{NONE }
[/METHOD={UNIQUE** }]
{EXPERIMENTAL}
{HIERARCHICAL}
[/STATISTICS=[MCA] [REG†] [MEAN] [ALL] [NONE]]
[/MISSING={EXCLUDE**}]
{INCLUDE }
**Default if the subcommand is omitted.
†REG (table of regression coefficients) is displayed only if the design is relevant.
Example
Overview
Options
ANOVA VARIABLES=PRESTIGE BY REGION(1,9) SEX,RACE(1,2)
/MAXORDERS=2
/STATISTICS=MEAN.
ANOVA performs analysis of variance for factorial designs. The default is the full factorial
model if there are five or fewer factors. Analysis of variance tests the hypothesis that the
group means of the dependent variable are equal. The dependent variable is interval level,
and one or more categorical variables define the groups. These categorical variables are
termed factors. ANOVA also allows you to include continuous explanatory variables, termed
covariates. Other procedures that perform analysis of variance are ONEWAY, SUMMARIZE,
and GLM. To perform a comparison of two means, use TTEST.
Specifying Covariates. You can introduce covariates into the model using the WITH keyword
on the VARIABLES subcommand.
Order of Entry of Covariates. By default, covariates are processed before main effects for factors.
You can process covariates with or after main effects for factors using the COVARIATES
subcommand.
Suppressing Interaction Effects. You can suppress the effects of various orders of interaction
using the MAXORDERS subcommand.
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