See Expert opinion. If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training, or education may testify thereto in the form of an opinion or otherwise. The intended testimony must concern a subject matter that is beyond the ken of the average juror; (2) the field testified to must be at a state of the art such that an expert's testimony would be sufficiently reliable; and (3) the witness must have sufficient expertise to offer the intended testimony. [Nesmith v. Walsh Trucking Co., 123 N.J. 547, 548, 589 A.2d 596 (1991) (citing State v. Kelly, 97 N.J. 178, 208, 478 A.2d 364 (1984)).
For expert testimony to be considered reliable, the proponent of the testimony must demonstrate its general acceptability as scientific evidence. See State v. Kelly, 97 N.J. 178, 208-209, 478 A.2d 364 (1984). Kelly explained that a party may prove acceptability through presentation of expert testimony by one within the expert's field or profession, submission of authoritative legal and scientific literature, or citation to judicial opinions. Id. at 209.