Manifested during the developmental period, characterized by significant limitations in cognitive functioning, demonstrated through limitations in adaptive behavior, adversely affects educational performance.
Hearing/vision loss or reduction causing significant communication and adaptive behavior deficits, adversely affecting educational performance, cannot be accommodated for by use of a program/service designed for students who are: deaf, hard of hearing, blind, or low vision.
At least 3 years of age, not over 5, or 5 years of age but not eligible to enroll in kindergarten. Delay of either 3 standard deviations below the mean in one of the following developmental areas or 1.5 standard deviations below the mean in any 2 of the following developmental areas: gross/fine motor, cognitive, receptive/ expressive language, social/emotional, self-help /other adaptive development.
Inability to learn or progress not explained by cognitive, sensory, or health factors, exhibits characteristics over a long period of time and to a marked degree that adversely affects educational performance.
Injury to the brain caused by an external physical force, resulting in total or partial functional disability or psychosocial impairment, or both, that adversely affects a student's educational performance.