The judgment of the Appellate Division is affirmed substantially for the reasons expressed in that court’s opinion. The Court comments briefly on the Appellate Division’s reversal of the trial court’s decision to exclude the opinion of Dianne Simmons-Grab and offers guidance for the trial court on remand in its role under N.J.R.E. 702 and N.J.R.E. 703 as the gatekeeper of expert witness testimony.