According to Andrew Wechsler, an intelligence researcher, intelligence is a complex and global ability that makes it possible for a person to think rationally and handle their environment efficiently. According to another, more detailed definition, intelligence is a broad mental ability that includes deduction, planning, problem solving, abstract thinking understanding complex ideas, fast learning and capability to learn from experience (Schalock et al., 2006).
We iemploy WISC IV (Wechsler Intelligence Scale for Children) in our study. The test measures cognitive ability in four main areas: verbal comprehension, visual spatial abilities, processing speed, and working memory.
