POWER
<options> ;
The POWER statement performs power and sample size analyses for the Type III test of each effect in the model defined by the MODEL statements and for the contrasts defined by all CONTRAST statements. The MODEL statement must appear before the POWER statement if the EFFECTS option is used in the POWER statement.
Table 44.5 summarizes the options available in the POWER statement.
Table 44.5: POWER Statement Options
Option 
Description 

Specifies the level of significance of each test 

Specifies multiple correlation () between covariates and response 

Specifies the location of the Dependent column in the output 

Specifies the model effects 

Specifies additional degrees of freedom due to covariates 

Enables fractional input and output for sample sizes 

Specifies the sample size 

Controls ordering in output 

Specifies Power 

Specifies proportional variance reduction (r) due to covariates 

Specifies error standard deviation 
Table 44.6 summarizes the valid result parameters.
Table 44.6: Summary of Result Parameters in the POWER Statement
Solve for 
Syntax 

Power 
POWER = . 
Sample size 
NTOTAL = . 
For the relationship between covariates and response, specify either the multiple correlation (by using the CORRXY= option) or the proportional reduction in total R square (by using the PROPVARREDUCTION= option).