You can test as young as 2.5, but scores can be overly inflated or deflated at that age. Even at 4-6 scores can be unreliable. Which is not to say that scores WILL change, just that an 8yr olds scores are seen as more reliable and stable than a 2 or 4 yr old.

My own DD refused part of her test at 4yrs 9 mths.

Last edited by MumOfThree; 02/27/12 06:48 PM.