An intelligence tests is a collection of problems, arranged in order of increasing difficulty which have to be solved within specified time limits. The idea underlying an intelligence test is that a more intelligence reason will be able to solve more problems quickly and correctly, as compared with a less intelligent one. The problem may be put in the form of words, patterns, picture or any other material suitable for the purpose. Considered with regard to the material used in their design.
There are two types of intelligence tests:
- Verbal: the items in a verbal intelligence tests are. Stated in language forms.
- Non-Verbal: are made up of materials such as patterns, line drawings,pictures, wooden or plastic pieces and the like. Non-verbal (matrices) intelligence tests are primarily used to remove the disadvantages of those candidates who may not have sufficient proficiency in the I.S.S.B. to measure and grade the intelligence level of the candidates.