In Booth v. Booth (1989), 44 Ohio St.3d 142, 541 N.E.2d 1028, the Ohio Supreme Court determined the abuse-of-discretion standard is the appropriate standard of review in matters concerning child support. In order to find an abuse of discretion, we must determine the trial court's decision was unreasonable, arbitrary, or unconscionable and not merely an error of law or judgment. Blakemore v. Blakemore (1983), 5 Ohio St.3d 217, 219, 5 Ohio B. 481, 450 N.E.2d 1140. Furthermore, as an appellate court, we are not the trier of facts. Our role is to determine whether there is relevant, competent, and credible evidence upon which the factfinder could base its judgment. Cross Truck v. Jeffries (February 10, 1982), Stark App. No. CA-5758, 1982 Ohio App. Accordingly, a judgment supported by some competent, credible evidence will not be reversed as being against the manifest weight of the evidence. C.E. Morris Co. v. Foley Constr. Co. (1978), 54 Ohio St.2d 279, 376 N.E.2d 578.