Clarke, Paula S. The modification of problem solving behavior of kindergarten and first grade reflective and impulsive children [microform]/ Paula S. Clarke. - Ann Arbor, Mich. : University Microfilms International, 1980. - 2 microfiches ; 11 x 15 cm. Thesis (Ph.D.) - University of Carolina, 1979. Subjects--Topical Terms: Problem solving in children.Child psychology.