Percentile norms calculator

Large scale normative data have recently been provided for the MDAS based on a sample size of 10,990 participants. See MDAS associated references (Word, 51 KB). For clinicians and researchers a convenient means of scoring an individual's MDAS score is via a computer program that can be downloaded (or run) from this page. The program is for PCs but will run on a Mac provided that suitable emulation software is installed.

MDAS Percentile Norms

The MDAS computer program, and statistical methods it implements, were developed by Professor John R Crawford, School of Psychology, University of Aberdeen. For other computer programs designed for clinical research and practice see Professor Crawford's web pages.

Professor Gerry Humphris, University of St Andrews
Medical and Biological Sciences Building, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9TF.

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