Average IQ of a 9 year old girl?

Answer 1

Average is 100. IQ is a standardized measurement. Although there are a number of different tests with different scales of measurement, they can all be converted to the same scale and are thus comparable. With that being said, an internet IQ test is not comparable.

Answer 2

The average (normal) IQ for any age is 100.

IQ is the percentage ratio of your mental age to your physical age.

IQ = (Mental age / Physical age) x 100

So, a normal 7-year-old would have a mental age of 7.

So (7 / 7) x 100 = 100

Answer 3

Probably around 100. IQ is calculated relative to age, therefore, as one grows older his/her IQ doesn't necessarily increase.

Answer 4

The difficulty of an IQ test is set so that all age Demographics get the same average score. The answer is 100.

Answer 5

By definition, 100. The ratio of mental age to physical age x 100 = intelligence quotient (IQ).

Answer 6

100, the absolute average IQ; theoretically a person's IQ doesn't change due to education, although it might appear to be higher than it actually is.