Conn. Gen. Stat. § 1-1g

(b) As used in subsection (a) of this section, “significant limitation in intellectual functioning” means an intelligence quotient more than two standard deviations below the mean as measured by tests of general intellectual functioning that are individualized, standardized and clinically and culturally appropriate to the individual; and “adaptive behavior” means the effectiveness or degree with which an individual meets the standards of personal independence and social responsibility expected for the individual's age and cultural group as measured by tests that are individualized, standardized and clinically and culturally appropriate to the individual.

Interpreting section to allow consideration of all intelligence tests that meet the statutory criteria best furthers legislature's intent to clarify and narrow definition of mental retardation to ensure that persons with borderline normal intelligence are not classified as mentally retarded, to prevent inappropriate commitment of such persons to mental retardation facilities and to assure that limited administrative resources are devoted to those most in need. 277 C. 594.

Christopher R. v. Commissioner of Mental Retardation , 277 C. 594, remains good law after 2012 amendment to section and controls the meaning of section, and 2012 amendment does not preclude the commissioner from considering more than one intelligence test. 208 CA 423.