It is practically not possible to measure or assess a person’s intelligence. The IQ of a person depends on several variables, such as the socio-economic status of the parents and their own education and intelligence, environment, state of health and several other variables If the person taking or participating in the IQ test suffers from any ailment, mental or physical then he/she would probably score poorly in the test. This does not mean that the person is less intelligent than the person achieving the highest score. Or a person may do exceptionally well in the test, but this would not really indicate that the person is super intelligent.
The scoring for an IQ test is based on several different harmonized tests, which are made to assess the intelligence and the quantity of intelligence that an individual possesses. The current tests only indicate that at the time of taking the test, whether that person possesses average, below average or better than average intelligence. The test does not measure a person’s ultimate capabilities; it just measures what the person has right now. This might be adequate for certain situations, but if your objective is to judge people by the score that they achieved on a particular IQ test, then it is not a very sound criterion.
A broad description of intelligence would be a rational ability that encompasses the ability for abstract thinking, planning, understand complicated data, learning rapidly and benefitting from experiences, reasoning and planning abilities and solving problems. Animals are not exactly devoid of intelligence, but humans have primarily concentrated on studying human intelligence. Even machines can be equipped to have artificial intelligence, and when programmed accordingly have been known to perform better than humans. Innumerable studies have been carried out on defining intelligence, but so far no consensus has been reached for a perfect definition of intelligence that would satisfy all scholars
Individuals are quite different from each other in their abilities in overcoming hindrances, and also in solving problems with reflective/objective thinking. Usually, these personal differences may be considerable, but they are never reliable. The same person will perform intellectual tasks with considerable variations on different occasions, in different spheres of influence, which can be assessed according to different facts or occurrences. In certain areas, many things have been clarified, by efforts to systematize intelligence, but a lot of question still remains unanswered, and no specific answer is universally accepted by all schools of thought. If fifty scholars are asked to define intelligence, you will probably have fifty different theories and observations