Intellectual Disability

Intellectual Disability means significantly sub average general intellectual functioning existing concurrently with deficits in adaptive behavior manifested during the developmental period that adversely affects a child’s educational performance.

A child displays intellectual disability when:

(1) The child performs 2.0 Standard Deviations below their peers of equivalent age, ethnic, and cultural background when measured by a standardized instrument of cognitive ability;
(2) The child displays adaptive behavior consistent with measured cognitive ability.Adaptive behavior refers to the effectiveness with which a student meets the standards of personal independence and social responsibility expected of his/her age and cultural group.There should be a significant positive correlation between the student’s intellectual ability and adaptive behavior; and,
(3) The disability adversely affects the child’s educational performance.

• Missouri State Plan for Special Education 

• Missouri Office of Special Education: Compliance Standards and Indicators

• Missouri Department of Elementary and Secondary Education: Special Education State Profile

• Project IDEAL

• CEEDAR Center

• American Association on Intellectual and Developmental Disabilities (AAIDD)
• Project IDEAL

• Missouri Department of Health
• Missouri Department of Elementary and Secondary Education: Statewide Assessments
• Missouri Department of Elementary and Secondary Education: Assessment - Map A

• MPACT
• Dynamic Learning Maps