This paper describes the rationale behind the Dyslexia Early Screening
Test for identifying children at risk for dyslexia before they fail t
o learn to read. The DEST comprises 11 simple subtests - speed, phonol
ogical skill, motor skill, cerebellar function and knowledge - which t
ogether provide an overall 'at risk' judgement, together with an abili
ty profile that indicates the particular areas of difficulty. It has b
een designed to be administered by teachers or health professionals wi
th no training in psychological testing, and takes about 30 minutes pe
r child. It forms the first stage in a planned screening assessment su
pport system and is currently under evaluation in British schools.