DST-J is a powerful screener, developed for use with school children in India in order to identify those who are at the risk of dyslexia.It is used on children between 6 years 6 months to 11 years 5 months. Raven’s Coloured Progressive Matrices and Crichton Vocabulary Scale enjoy a long and famous history in the assessment of general cognitive abilities in children. It can be administered on children between ages 4-11 years.