Statistical Analysis for Education and Psychology Researchers

(Jeff_L) #1

run;
proc print split='';
where flag =2; /
found
power /
id alpha;
var pie1 pie2 n power;
label power='CALCULATED VALUE
OF
POWER';
title3 'Finding the power';
run;


Figure 2: SAS program POWER1 for


power and sample size calculations,


difference between two proportions


(independent groups)




**;
Filename: POWER2.JOB
;

;
Purpose: This job calculates
statistical power and sample
;
sizes for comparison of two
means independent
;
groups.
;

;
Calculations are based on
Machin, D. and Campbell,
;
M.J.
(1987).
;

;
Created: 16 March
1995
;

;
Input file: NONE (see
notes)
;
Output file: NONE (see
notes)
;


Appendix 355
Free download pdf