Commercial Dyslexia Centres & Treatments, Science

Critical appraisal of DDAT Controlled Trial

Professor Snowling and Professor Hulme of the Department of Psychology at York University in the UK, have published a scientific research article entitled “Lies, Damned Lies and (Inappropriate) Statistics?”. This article [Summary only] looks at the much publicised 2003 DDAT study. To quote from the article’s abstract “We outline the numerous methodological and statistical problems with this study and conclude that it provides no evidence that DDAT is an effective form of treatment for children with reading difficulties.”

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