Julie A. Frazier

Specificity in the Nature and Timing of Cognitive Growth in Kindergarten and First Grade

Greta M. Massetti, F. Morrison, Kate Christian, 2000 .

The influence of extended-year schooling on growth of achievement and perceived competence in early elementary school.

F. Morrison, J. A. Frazier, Julie A. Frazier, 1998, Child development.