Section 392-172A-03065. Use of discrepancy tables for determining severe discrepancy.

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(1) If the school district uses a severe discrepancy model, it will use the OSPI's published discrepancy tables for the purpose of determining a severe discrepancy between intellectual ability and academic achievement.

(2) The tables are developed on the basis of a regressed standard score discrepancy method that includes:

(a) The reliability coefficient of the intellectual ability test;

(b) The reliability coefficient of the academic achievement test; and

(c) An appropriate correlation between the intellectual ability and the academic achievement tests.

(3) The regressed standard score discrepancy method is applied at a criterion level of 1.55.

[Statutory Authority: RCW 28A.155.090(7) and 42 U.S.C. 1400 et. seq. WSR 07-14-078, § 392-172A-03065, filed 6/29/07, effective 7/30/07.]

RCW 28A.155.090(7) and 42 U.S.C. 1400 et. seq. WSR 07-14-078, § 392-172A-03065, filed 6/29/07, effective 7/30/07.

                    
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