(2) In matters alleging a procedural violation, a hearing officer may find that a child did not receive a FAPE only if the procedural inadequacies--
(i) Impeded the child's right to a FAPE;
(ii) Significantly impeded the parent's opportunity to participate in the decision-making process regarding the provision of a FAPE to the parent's child; or
(iii) Caused a deprivation of educational benefit.
