Hi,
I’ am pleased to inform that a set of 36 SPSS Syntax Files - SIMPLE AND COMPLEX RANDOM ASSIGNMENT FOR EXPERIMENTAL DESIGNS - for randomization of between-subjects (simple random assignment, block random assignment, and stratified random assignment) and within-subjects designs (complete counterbalancing, Latin squares, and carryovers designs) is available at:
http://www.fpce.uc.pt/niips/spss_prc/scra/scra.htm
Best regards,
Valentim R. Alferes
University of Coimbra (Portugal)
http://www.fpce.uc.pt/niips/spss_prc/index.htm