A comprehensive evaluation for children under age 5 who may be behind in developmental milestones.

• Conducted by an Early Intervention (Part C) team — usually including a psychologist, speech therapist, and occupational or physical therapist.
• Assesses communication, motor skills, cognition, adaptive behavior, and social-emotional development.
• Determines eligibility for Early Intervention services (birth–3) or preschool special education (ages 3–5).
• Key Outcome: Developmental Assessment Summary with age equivalents, eligibility category, and service plan (IFSP or preschool IEP).