Kent EGY and the Porteus Maze Test: The Porteus Maze Test was developed to measure planning and adaptability skills in new situations and is performance-based. The individual must draw a line from the starting point to the exit point in mazes of varying difficulty, following specific rules. According to Riddle and Roberts (1977), the test is relatively valid in terms of the concepts of foresight, planning, impulsivity, and judgment, and is also reliable in terms of inter-rater reliability (Porteus, 1955; Riddle and Roberts, 1977). The Porteus Maze Test was adapted into Turkish by Beğlan Toğrol (Toğrol, 1974). The Kent EGY test is administered to assess the verbal intelligence skills of individuals based on knowledge and language; it has no time limit and is administered individually in a single session.
The Kent EGY Intelligence Test was developed in 1941 by Grace H. Kent. It is a paper-and-pencil test based on verbal performance. It can be administered to patients without speech, hearing, or verbal expression difficulties, as well as to individuals without such difficulties. There are no time limits for the test. It is suitable for children aged 6–14 and for adults suspected of having intellectual disabilities. The administration and scoring of this intelligence test, which consists of 10 simple questions, are quite straightforward. For individuals aged 14 and older, the following tables are used to calculate IQ. For those under 14, the mental age must be calculated separately based on chronological age.