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WAC 388-823-0720

What evidence do I need of my FSIQ?

Evidence of a qualifying FSIQ is derived from one of the tests listed in the table below.
Assessment
Qualifying score at more than 2 standard deviations
Qualifying score at more than 1.5 standard deviations
Qualifying score at more than 1 standard deviation
Stanford-Binet 4th edition or earlier editions
67 or less
75 or less
83 or less
Stanford-Binet 5th edition
69 or less
77 or less
84 or less
Wechsler intelligence scales (Wechsler)
69 or less
77 or less
84 or less
Differential abilities scale (DAS)
69 or less
77 or less
84 or less
Kaufman assessment battery for children (K-ABC)
69 or less
77 or less
84 or less
Das-Naglieri cognitive assessment system (CAS)
69 or less
77 or less
84 or less
Woodcock-Johnson-III test of cognitive abilities (WJ III(r))
69 or less
77 or less
84 or less
(1) The test must be administered by a licensed psychologist or Washington certified school psychologist or other school psychologist certified by the National Association of School Psychologists.
(2) The FSIQ score cannot be attributable to mental illness or other psychiatric condition occurring at any age; or other illness or injury occurring after age eighteen:
(a) If you are dually diagnosed with a qualifying condition and mental illness, other psychiatric condition, or other illness or injury, you must provide acceptable documentation that your intellectual impairment, measured by a FSIQ test, would meet the requirements for DDA eligibility without the influence of the mental illness, other psychiatric condition, or other illness or injury.
(b) "Acceptable documentation" means written reports or statements that are directly related to the subject at issue, reasonable in light of all the evidence, and from a source of appropriate authority. The determination of whether a document is acceptable is made by DDA.
(c) If no documentation is provided or DDA determines that the documentation is not acceptable DDA will deny eligibility. The determination may be challenged through an administrative appeal.
(3) If you have a vision impairment that prevents completion of the performance portion of the IQ test, the administering professional may estimate an FSIQ using only the verbal IQ score of the appropriate Wechsler.
(4) If you have a significant hearing impairment, English is not your primary language, or you are nonverbal your FSIQ may be estimated using one of the tests shown in the table below.
Assessment
Qualifying score at more than 2 standard deviations
Qualifying score at 1.5 or more standard deviations
Qualifying score more than 1 standard deviation
Wechsler intelligence scales (WISC, WAIS)
69 or less on the performance scale, or, on both the perceptual reasoning index and processing speed index
77 or less on the performance scale, or, on both the perceptual reasoning index and the processing speed index
84 or less on the performance scale, or, on both the perceptual reasoning Index and the processing speed index
Leiter international performance scale-revised (Leiter-R)
69 or less
77 or less
84 or less
Comprehensive test of nonverbal intelligence (C-TONI)
69 or less on full scale (NVIQ)
77 or less on full scale (NVIQ)
84 or less on full scale (NVIQ)
Kaufman assessment battery for children (K-ABC)
Nonverbal scale index of 69 or less
Nonverbal scale index of 77 or less
Nonverbal scale index of 84 or less
(5) If you are over the age of nineteen at the time of your determination you must have a valid FSIQ obtained at age thirteen or older.
[Statutory Authority: RCW 71A.12.030, 71A.12.120 and 74.08.090. WSR 14-12-046, ยง 388-823-0720, filed 5/29/14, effective 7/1/14.]
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