The Slosson Intelligence Test (SIT) was given to 122 male and female profoundly and severely mentally retarded residents of an institution who had previously been given a Stanford-Binet, Kuhlmann Extension of the Binet Test or Kuhlmann Test of Mental Development. A correlation of .91 was found between scores on the SIT and the Kuhlmann, indicating the SIT as a useful test to use with severely retarded persons.
References
1.
SlossonR. L.Slosson Intelligence Test (SIT) for Children and Adults. New York: Slosson Educational Publ., 1963.