Binet and simon developed the first objective intelligence test in order to

Binet and Simon developed  the first objective intelligence test in order to: identify children who would need special help in school.

Binot and Simon first created the test to measure The intelligence of autistic children so they could develop a method to help them study. But as it turned out, their method could also used to measure the intelellegence of normal children. Until now, their method is still used as a basis to conduct an iq test.