Originally Posted by Katelyn'sM om
This might explain why the data is collected:

http://www.gifteddevelopment.com/What_is_Gifted/learned.htm

"18. Many cases of underachievement are linked to chronic early ear infections (9 or more in the first three years), with residual effects of auditory sequential processing deficits and attentional problems. Spelling, arithmetic, handwriting, rote memorization, attention, and motivation to do written work are all typically affected."

Interesting ! My son had his very first ear infection when he was 5 years old !