(1) If you have more than one FSIQ, DDA will review the pattern of FSIQ scores.

(a) If the variation among these scores is no more than five points, DDA will accept the score obtained closest to but below age eighteen.

(b) If there are differences among the FSIQ scores of more than five points, DDA will review the pattern and attempt to determine reasons for the fluctuations to ensure that the most reliable and accurate FSIQ score is used. DDA will use the most current FSIQ obtained below age eighteen, provided the FSIQ is a result of your developmental disability.

(2) DDA will exclude any FSIQ score attributable to a condition or impairment that began on or after your eighteenth birthday.