Patterns of school readiness among head start children: Meaningful within-group variability during the transition to kindergarten

Journal of Educational Psychology (2012) - Comment
doi: 10.1037/a0028884 issn: 1939-2176 issn: 0022-0663

Christine M. McWayne, Katherine Cheung, Linnie E. Green Wright, Debbie L. Hahs-Vaughn