Thus it was possible, for example, to compare children with the same amount of lead but from different social groups.
He wastes no more time comparing dead children to dead grouse.
She'd compared children with Vorthys, and spoken of an eldest daughter's upcoming wedding.
It's tricky to compare children to adults and on that basis establish a new species.
Even when comparing children with the same reading scores, ethnic Germans were still 2.11 times as likely to receive the letter.
It also doesn't matter if you are comparing children or co-workers.
Without adequate data to compare children, the Administration believes, it is impossible to know if progress is being made.
They also question whether it is valid to compare young children with developmental standards when they develop at such different rates.
In fact, say researchers who have been comparing children in the two situations, it's all a fiction.
They plan to do a long-term study comparing children who received the vouchers with those rejected.