The EIDP is a developmental assessment for children from birth to 36 months designed to identify strengths and weaknesses and provide a developmental range to guide intervention planning. It was developed by an interdisciplinary team and assesses six developmental domains through informal, play-based activities with the child and parent report. Items were selected through a rigorous process and show strong construct validity and interrater reliability. Administration involves determining the child's developmental range through establishing a basal and ceiling within each domain assessed.