1. Evaluation of Project Giant Step: Technical progress report number 4;Abt Associates,1988
2. Observer training manual: Observational study of early childhood programs;Abt Associates,1991
3. Exemplary preschool programs for at risk children: A review of recent literature;Balasubramaniam,1988
4. The economics of early educational intervention: A review;Barnett;Review of Educational Research,1987
5. The efficacy of public preschool programs and the relationship of program quality to program efficacy;Barnett;Educational Evaluation and Policy Analysis,1987