I think a child should be told his precise IQ score when he has a sufficiently good knowledge of statistics to understand what the number means.
Here is a story. I was tested in elementary school, and let's call the score 140. It was explained to me as the quotient of mental to chronological age, and I remember when a school counselor told me "10 year olds are not ready to do XYZ" I shot back "my mental age is 14 because my IQ is 140". He thought this statement was arrogant and did not grant my request. I did not see the error in my reasoning.
Last edited by Bostonian; 04/21/11 05:37 AM.