CHICAGO - Experts at Northwestern University unveiled a new tool to help track the cognitive, language, motor skills, and social-emotional skill development for infants as young as 16 days old.

The new National Institutes of Health Toolbox provides a research-based, nationally standardized way to assess infants and toddlers.

What we know:

The previous version of the toolbox only covered kids as young as 3 years of age, leaving a "serious gap," according to the developmental scientists and medical social science experts at Northwestern.

So what’s in the toolbox?

Northwestern professor Richard Gershon said the toolbox includes a series of 40 measures that can be given to children. He discussed the details on ChicagoNOW .

"We can identify, broadly based on cognitive functioning, thi

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