GET
  FILE='/Users/apetrov/a/r/w/work/CMUExper/fdbk1/data/SPSS/ARL2-wn-Ss.sav'.

DATASET ACTIVATE DataSet2.
USE ALL.
FILTER BY filter_$.      /* Group > 1. Alex Petrov, 2009-12-28 on Mac OS X */
EXECUTE.
GLM F1 F2 F3 F4 N1 N2 N3 N4 BY Context Order
  /WSFACTOR=Feedback 2 Polynomial Period 4 Polynomial
  /MEASURE=ARL
  /METHOD=SSTYPE(3)
  /CRITERIA=ALPHA(.05)
  /WSDESIGN=Feedback Period Feedback*Period
  /DESIGN=Context Order Context*Order.
