ABSTRACT
In this chapter, it is argued that in order to remediate deficient intellectual performance, special emphasis needs to be given to language and this naturally involves the accurate assessment of linguistic behaviour. Three standardised intelligence tests are evaluated in the light of their success in diagnosing language deficiencies. The suggestion is put forward that although of value in identifying potential language difficulties, these tests are of limited use in making diagnoses and in suggesting remediation. It is concluded that intelligence tests need supplementing with other measures specifically designed to identify and remediate deficient language performance. Discussion of the relationship between language and intellectual development, has often centred around the debate of whether language precedes and hence is causal in the development of thinking, or if it is simply a means of representing what is already known.
