This document is the second part of a comprehensive study designed to review child development data and program evaluation data so that proposals for Federal program planning can be made. This section (Volume 2) consists of five chapters that review project evaluation data in the five major modes of child intervention. Chapter 1 looks at evaluation data of Federally sponsored early childhood education programs, including Follow Through, the national network of Research and Development Centers, and Performance Contracts experiments. Chapter 2 focuses on preschool intervention of the sort now implemented under Head Start. Chapter 3 reviews current knowledge about the influence of day care on child development, when intervention occurs with children between 0-3 years. Chapter 4 is concerned with family intervention, based on evaluation data of programs involved in parent education, parent training, family therapy, and provision of social services. The final chapter reviews data arising from evaluation of health care projects. (DP)