Bi·net-Si·mon scale 
(b
ĭ-n
ā′s
ē-m
ōɴ, -s
īm
ən)
n. An evaluation of the relative mental development of children by a series of psychological tests of intellectual ability. Also called Binet scale, Binet-Simon test, Binet test.
[After Alfred Binet (1857-1911) and Théodore Simon (1873-1961), French psychologists.]