Find content
Not Telling
jdg, on 2011-07-10 11:56:11, said:
atyclb, on 2011-07-08 19:48:03, said:
DNPBC0, on 2011-07-08 08:51:04, said:
AyG, on 2011-07-08 06:33:58, said:
....
As for not more than 2% having IQs of less than 70, also wrong. IQ is defined as having a standard deviation of 15 (or 16 in some versions of the test). 70 is two standard deviations away from 100, so approximately 2.5% of subjects will have an IQ of less than 70 (and 2.5% have an IQ above 130).
As for not more than 2% having IQs of less than 70, also wrong. IQ is defined as having a standard deviation of 15 (or 16 in some versions of the test). 70 is two standard deviations away from 100, so approximately 2.5% of subjects will have an IQ of less than 70 (and 2.5% have an IQ above 130).
No, you are wrong.
While it is theoretically true that, if IQ scores were normally distributed, there would be just over 2% of the population with scores of 70 or less on a test with a mean =100 and a standard deviation of 15, in reality there is always a hump in the lower end of the IQ frequency distribution leading to a greater than expected number of individuals with IQs less than 70. The reason for this is the multitude of genetic, congenital and environmental factors which impair cognitive functioning.
DNPB0...my..hat..is...off...to...you....(space..bar...on..keyboard..not..working..sorry...for..dots)..nice..to...see..high..level...thinking..here...I'm...sure...many...will....be....happy...knowing..there...will...always....be...a...hump.....in...the....lower...iQ...(LOL)
Sorry, Talking about IQ press alt+255 as an alternate for space bar 555555
