IQ tests - I worked as an Ed. Psych for 26 years and must have administered at least 10,000 individual IQ tests to children.
Mostly WISC and Stanford Binet. Also Griffiths baby scales. Each test takes about one and a half hours to administer.
Those are at best a general indicator of a child's particular strengths and weaknesses in comparison with his/her peers - on that day and in that situation.
There have been several other IQ tests devised mostly aimed at adults which in my opinion are less thorough. And with adults more external factors to affect the results. eg cultural.
So I'm rather sceptical about the sweeping statement that people are getting stupider based on mass IQ figures.
Someone needs to go back to Junior School himself.
Things that (sometimes unreasonably) get on your nerves...hopefully lighthearted




