IQ scores have been increasing since they were first devised - Flynn effect
It is not clear what intelligence is, how it relates to IQ tests and what is actually being measured but what is interesting is that since IQ tests have been devised applying tests from earlier periods to later generations has consistently shown an 'increase' in IQ. This is 'corrected' by normalising all IQ tests so that they all have an average result of 100 and a standard distribution of 15 or 16. Therefore average intelligence is always 100 by design. This effect of constantly increasing results is known as the Flynn effect and may (quite recently) be coming to an end. The one thing it does not show (in my opinion) is an increase in intelligence but the limitations of the test. Saying the average intelligence is now 103 shows a profound ignorance of the defintiion of IQ tests and the history of changes in the response to tests. It is definitely not a new phenomenon.
Biting the hand that feeds IT
