Presented at the 7th International Conference of the British Dyslexia Association, Harrogate, UK, 27–29 March 2008.

We present a computer-based assessment battery (LAMDA) screening schoolchildren for difficulties with oral and/or written language. Administration is unsupervised and lasts about 35 minutes. The software assesses word recognition, spelling, oral and reading comprehension, reading time, morphosyntax, vocabulary, short-term memory, nonverbal intelligence and rhythm sensitivity. Age-appropriate materials and graphics are used for different grades. Individual profiles highlight performance below the 10th and 25th percentile. LAMDA was standardized on 1451 children from Grades 2 through 8. We present data on internal and test-retest reliability, and external validity (comparing to full-length noncomputerised assessment), and we discuss LAMDA profiles of children with dyslexia.