1. Child/adolescent behavioral and emotional problems: Implications of cross-informant correlations for situational specificity;Achenbach;Psychological Bulletin,1987
2. America's Children in Brief: Key National Indicators of Well-Being. (2006). Retrieved September 17, 2007, from http://www.childstats.gov/americaschildren/.
3. American Educational Research Association, American Psychological Association, & National Council on Measurement in Education. (1999). Standards for Educational and Psychological Testing. Washington, DC: American Educational Research Association.
4. The production of quality in child care centers: Another look;Blau;Applied Developmental Science,2000
5. Effects of day care on the development of cognitive abilities in 8-year-olds: A longitudinal study;Broberg;Developmental Psychology,1997