Adaptive development refers to the development of behaviors and self-help skills that assist children in coping with the natural and social demands of the environment, including sleeping, feeding, mobility, toileting, dressing, and higher-level social interactions. A child who is experiencing delays in adaptive development has difficulty in learning and acquiring these behaviors and skills. Delays in adaptive development may be associated with delays or impairments in other areas of development, including fine and gross motor skills, oral-motor functioning, cognitive development, communication development, and social-emotional development.
https://www.health.ny.gov/community/infants_children/early_intervention/memoranda/2005-02/eligibility_criteria.htm
https://www.health.ny.gov/community/infants_children/early_intervention/memoranda/2005-02/eligibility_criteria.htm