QuickTTest and QuickTtestX are programmes for calculating means, SDs and SEMs and testing the significance of differences using Student's t-test. Their main advantage over other statistical programmes is that data can be input not only as individual values (from the keyboard or by import from a text file) but also as mean ± SD or mean ± SEM for groups. QuickTTest runs on any Macintosh with any system from 7.6 to 9.2 and can be downloaded as a binhex file by clicking here. QuickTTestX runs under Mac OSX and can be downloaded as a zipped file by clicking here. You will need Stuffit Expander or similar utility to expand the files.
