PSY: A program for contrast analysis - Kevin Bird, Dusan Hadzi-Pavlovic, and Andrew Isaac © School of Psychology, University of New South Wales

Click here for background information on PSY.

Click here to download PSY (you need a Windows based computer to run PSY).

Those who wish to use PSY to carry out tests or construct confidence intervals based on the SMR approach to the analysis of product interaction contrasts (Bird & Hadzi-Pavlovic, 2005; Boik, 1993) may be interested in downloading an SPSS macro that calculates SMR statistics in analyses including more general product contrasts. You can download the macro as a text file or an SPSS syntax file. 

Before running PSY, consult the ReadMe document. Please send feedback to k.bird@unsw.edu.au.