Numbers say that intelligence test performances have been rising steadily since the Weschler and Stanford-Binet tests were created. The score that I received on the IQ test seemed kind of low to me, but when I looked on the graph it shows that my score is average for people in 2010, and is about 25% higher than the average score 100 years ago.
The higher average modern scores can probably be attributed to the better nutrition and possibly even education that we have access to today.
If your IQ can change as you age, is it possible that someone can be considered mentally retarded after a lifetime of what was otherwise considered average intelligence? And could the opposite be true, someone formerly considered mentally retarded could then be of average intelligence later in life? If these cases exist, they are probably rare, but to say that this is impossible would be too extreme.
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It is very intereseting that through the years our iq has been rising, although this is not all that surprising. Almost everything is advancing with time. Technology is getting even better every day. Well in class we discussed that the way your iq gets calculated as you age changes so i don't think that is really possible. So I don't really think some thing like that would happen but in some chance event, it may have.
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