Mr. Naglieri dismissed the idea that preparation could unduly reward students on his test.

WSJ: Big Change in Gifted and Talented Testing

"There have been people who have taken pot shots and used bad research to say I'm wrong, " Mr. Naglieri said.

WSJ: Big Change in Gifted and Talented Testing

As my colleague Sophia Hollander reported earlier this month, the new test will weigh heavily on the Naglieri Nonverbal Ability Test (NNAT).

WSJ: Conflicted Over Gifted: NYC's Gifted and Talented Test Changes