The National Research Council issued a report in 2009 saying parents, teachers and caregivers need more information about helping preschoolers learn about numbers, spatialthinking and measurement.
This test, which relies on abstract spatialthinking, will now account for about two-thirds of the score, while the Otis-Lennon School Ability Test (OLSAT) will be about a third.
The team told him to use "motor" imagery like a tennis match to indicate "yes" and "spatial" imagery like thinking about roaming the streets for a "no".