Guest: Vanessa Gaydon | Chairperson at Educational Psychology Association of South Africa.

According to research by a Wits University master's student in 2017, at least 60 of 127
educational psychologists surveyed most frequently used the SSAIS-R while 41 used the
UK's Wechsler Intelligence Scale for Children (WISC-IV). The latest edition of the
Wechsler test costs R35,630, a one-off fee.

Educational psychologist Tumi Diale, head of the University of Johannesburg's department for educational psychology, said four of the 11 sub-tests in the IQ test should be revamped. These sub-tests include vocabulary, comprehension, similarities and missing parts.