THE CONVENTION IN A NUTSHELL. 7. Mountain farming. Slightly more than four percent of the population in the Alpine area still live on agriculture and, in the last 25 years, the agricultural population has decreased by over 40 percent. The number of farms run as a secondary activity is plummeting.
However all tests and scales use 100 as the IQ of a person of average intelligence. Since the average IQ is said to be 100, hence anything above 100 is considered as above average and below 100 as below average.IQ below 70 is taken as that of mentally challenged person.IQ above 140 is generally considered as that of a genius.We already know that IQ = Mental Age/Chronological Age X 100. Hence, the normal or average IQ score is 100, which means that the mental and chronological ages coincide. very small percentage of the population reaches an IQ of over 140. From this chart, it can be thus concluded that a normal IQ score is generally considered to be around the 100 mark. IQ scores are thus calculated on a scale of 0 to 200.
An IQ score of 70 or below is considered a low score. Remember, on most standardized tests of intelligence, the average score is set at 100. Anything over 140 is considered high or genius-level. Sixty-eight percent of all scores fall within plus or minus 15 points of the mean (so between 85 and 115). So what does it mean to have a score 70 or below? In the past, an IQ score below 70 was considered a benchmark for mental retardation, an intellectual disability characterized by significant cognitive impairments. Today, however, IQ scores alone are not used to diagnose intellectual disability. Instead, the criteria for a diagnosis includes an IQ below 70, evidence that these cognitive limitations existed before the age of 18 and limitations in two or more adaptive areas such as communication and self-help skills.