This first volume of the Assessment, Evaluation and Programming System (AEPS) test and its associated curriculum describes the AEPS measurement components for the developmental range from birth to 3 years. Section I provides a comprehensive description of the AEPS and how its measurement system functions for children and caregivers. Section II presents the actual test items for assessing and evaluating children, with items divided according to their role in fine motor, gross motor, adaptive, cognitive, social-communicative, and pure social domains. Section III describes how to involve families in the assessment and evaluation process as well as specific strategies and forms for facilitating such involvement. Appendix A contains summarized psychometric information on the AEPS. Appendix B contains a series of Individualized Education Plan/Individualized Family Service Plan goals and objectives specifically related to individual items on the AEPS test. Appendix C contains a set of assessment activity plans, followed by samples of key forms in Appendix D. (PB)