"Qualified taxpayer" means an individual who has timely filed a resident return, is a resident of this State during the taxable year, and who had during the taxable year:
"Qualifying child" means the same as defined in section 152 of the Internal Revenue Code (26 U.S.C. s. 152), where claimed as a dependent on a resident return under the New Jersey Gross Income Tax Act.
N.J.S. § 54A:9-30