Section 388-828-4420. How does DDD determine your percentile rank and standard score for each subscale in the SIS support needs scale?  


Latest version.
  • DDD uses the following table to convert your total raw score for each subscale into a percentile ranking:
    [Statutory Authority: RCW 71A.12.030 and 2012 c 49. WSR 13-01-080, § 388-828-4420, filed 12/18/12, effective 1/18/13. Statutory Authority: RCW 71A.12.030 and Title 71A RCW. WSR 07-10-029, § 388-828-4420, filed 4/23/07, effective 6/1/07.]
RCW 71A.12.030 and 2012 c 49. WSR 13-01-080, § 388-828-4420, filed 12/18/12, effective 1/18/13. Statutory Authority: RCW 71A.12.030 and Title 71A RCW. WSR 07-10-029, § 388-828-4420, filed 4/23/07, effective 6/1/07.