An individually-administered test of intelligence originally designed for deaf children and adolescents (or those with speech impairments) that does not require verbal communication or instructions, and with norms ranging from 2 to 21 years. Originally devised by Russell G. Leiter in 1929 at the University of Hawaii, it has undergone a number of revisions, and is now referred to as the Leiter-R. It includes 20 subtests grouped into four domains: reasoning, visualization, memory and attention. In addition, there are also four social-emotional rating scales: examiner, parent, self rating, and teacher designed to provide information about a child’s activity level, attention, impulse control and other emotional characteristics that may influence test and functional performance at home and at school. It is claimed that it lays a stress on fluid intelligence. Leiter-R was standardized on a sample of 1719 typically developing children and adults, and a further 692 atypical children drawn from 9 clinical groups, as well as being representative of children from different ethnic backgrounds. It has generally been well received by educational psychologists, and correlates 0.85 with the WISC-III Scales.
See Fluid intelligence, HOME inventory, Intelligence, MacArthur-Bates Child Development Index (CDI), Mullen Scales of Early Learning Wechsler Intelligence Scales for Children and Adults (WISC-III)