This court held in the syllabus of Jones v. Murphy (1984), 12 Ohio St. 3d 84, that “Civ. R. 37 permits the exclusion of expert *85testimony pursuant to a motion in limine as a sanction for the violation of Civ. R. 26(E)(1)(b).” In reaching this conclusion we reasoned at 86:
“One of the purposes of the Rules of Civil Procedure is to eliminate surprise. This is accomplished by way of a discovery procedure which mandates a free flow of accessible information between the parties upon request, and which imposes sanctions for failure to timely respond to reasonable inquiries. Appellants argue that a continuance should have been requested and granted once the expert witness’ identity was discovered by appellee. An intentional violation of the rules should not be so easily disregarded, however.
“We therefore conclude that Civ. R. 37 permits the exclusion of expert testimony pursuant to a motion in limine as a sanction for the violation of Civ. R. 26(E)(1)(b). * * *” '
Shortly thereafter, we similarly noted that “[t]he Jones ruling was based upon specific state Rules of Civil Procedure dealing with discovery. The reasoning in Jones is no less compelling in the instant case, in which Rule 21 of the Cuyahoga County Local Rules of Court, dealing with pretrial procedure, applies. * * *” Paugh & Farmer, Inc. v. Menorah Home for Jewish Aged (1984), 15 Ohio St. 3d 44, 45.
We recognize that both Jones and Paugh & Farmer involved instances of willful noncompliance. However, the existence and effect of prejudice resulting from noncompliance with the disclosure rules is of primary concern, not just the intent or motive involved. Appellee’s conduct may well have been produced by neglect, a change in defense strategy or an inadvertent error.2 Nevertheless, the trial court recognized it as a breach of duty giving rise to unfair surprise and concluded that the resulting prejudice could best be remedied by exclusion of the evidence. Civ. R. 26(E) and 37(B)(2)(b).3
*86The purpose of these rules, as herein applicable, “is to prevent surprise to either party at the trial or to avoid hampering either party in preparing its claim or defense for trial. * * *” Jones, supra, Clifford F. Brown, J., dissenting, at 87. We determine that it was certainly not an ábuse of discretion for the trial court to have concluded that, in order to effect a just result,4 appellants’ motion to exclude appellee’s surprise expert witness must be granted.5 See, also, Moore v. Emmanuel Family Training Ctr. (1985), 18 Ohio St. 3d 64.
*87Accordingly, we reverse the court of appeals’ decision on this issue and reinstate the trial court’s judgment.
We now turn to the issue concerning the correctness of the award of prejudgment interest. We first note that such awards are within the sound discretion of the trial court. Cincinnati Ins. Co. v. First Natl. Bank (1980), 63 Ohio St. 2d 220, 226 [17 O.O.3d 136]. We have repeatedly held that “[t]he term ‘abuse of discretion’ connotes more than an error of law or of judgment; it implies that the court’s attitude is unreasonable, arbitrary or unconscionable. Steiner v. Custer (1940), 137 Ohio St. 448 [19 O.O. 148]; Conner v. Conner (1959), 170 Ohio St. 85 [9 O.O.2d 480]; Chester Township v. Geauga Co. Budget Comm. (1976), 48 Ohio St. 2d 372 [2 O.O.3d 484].” State v. Adams (1980), 62 Ohio St. 2d 151, 157-158 [16 O.O.3d 169]; Blakemore v. Blakemore (1983), 5 Ohio St. 3d 217, 219.
“ ‘[A]n abuse of discretion involves far more than a difference in * * * opinion * * *. The term discretion itself involves the idea of choice, of an exercise of the will, of a determination made between competing considerations. In order to have an “abuse” in reaching such determination, the result must be so palpably and grossly violative of fact and logic that it evidences not the exercise of will but perversity of will, not the exercise of judgment but defiance thereof, not the exercise of reason but rather of passion or bias. * * *’ ” State v. Jenkins (1984), 15 Ohio St. 3d 164, 222.
So tested, we find that it was not an abuse of discretion for the trial court to have concluded that the pretrial circumstances in this case revealed a lack of good-faith effort by appellee to settle this dispute.6 There was ample evidence justifying the trial court’s award of prejudgment interest in favor of appellants pursuant to R.C. 1343.03(C). See Cox v. Fisher Fazio Foods, Inc. (1984), 13 Ohio App. 3d 336, 337. However, the court of appeals correctly determined that interest could not be awarded for the period prior to the effective date of the statute. Cf. Wilfong v. Batdorf (1983), 6 Ohio St. 3d 100, 103-104.7 Accordingly, upon remand, the *88trial court may compute prejudgment interest from July 5, 1982 “to the date on which the money is paid.” R.C. 1343.03(C).
The judgment of the court of appeals is reversed in part and affirmed in part and the judgments of the court of common pleas are reinstated with direction that the prejudgment interest award be limited to an amount not inconsistent with this decision.
Judgment accordingly.
Celebrezze, C.J., Sweeney, Locher and Douglas, JJ., concur. Holmes, C. Brown and Wright, JJ., concur in part and dissent in part.Additionally, although surprise is all but eliminated under the Civil Rules relating to discovery, an evidentiary basis has long been recognized for the exclusion of otherwise relevant evidence if its admission would result in “unfair surprise” disproportionate to its probative value. Cottman v. Federman Co. (1942), 71 Ohio App. 89, 91 [25 O.O. 435].
Civ. R. 26(E) states in relevant part:
“A party who has responded to a request for discovery with a response that was complete when made is under no duty to supplement his response to include information thereafter acquired, except as follows:
“(1) A party is under a duty seasonably to supplement his response with respect to any question directly addressed to * * * (b) the identity of each person expected to be called as an expert witness at trial and the subject matter on which he is expected to testify.
“(2) A party who knows or later learns that his response is incorrect is under a duty seasonably to correct the response.
“(3) A duty to supplement responses may be imposed by order of the court, agreement of the parties, or at any time prior to trial through requests for supplementation of prior responses.”
Civ. R. 37(B)(2)(b) provides that the court may sanction a party by entering “[a]n order refusing to allow the disobedient party to support or oppose designated claims or defenses, or prohibiting him from introducing designated matters in evidence * * *.”
*86See, also, Civ. R. 37(D) which states, inter alia, that “[i]f a party * * * fails * * * to serve answers or objections to interrogatories * * *, the court * * * on motion and notice may make such orders in regard to the failure as are just, and among others it may take any action authorized under subsections (a), (b), and (c) of subdivision (B)(2) of this rule. * * *” (Emphasis added.)
Civ. R. 1(B) provides:
“These rules shall be construed and applied to effect just results by eliminating delay, unnecessary expense and all other impediments to the expeditious administration of justice.” (Emphasis added.)
Pertinent to the Civil Rules concerning discovery, Civ. R. 26(A) declares,
“It is the policy of these rules (1) to preserve the right of attorneys to prepare cases for trial with that degree of privacy necessary to encourage them to prepare their cases thoroughly and to investigate not only the favorable but the unfavorable aspects of such cases and (2) to prevent an attorney from taking undue advantage of his adversary’s industry or efforts.”
We note in passing that appellee’s original appeal alleged that the trial court erred in granting appellants’ motion in limine. As we noted in State v. Maurer (1984), 15 Ohio St. 3d 239, 259, quoting with approval Redding v. Ferguson (Tex. Civ. App. 1973), 501 S.W. 2d 717, 722, “* * * ‘[t]he purpose of a motion in limine is to avoid the injection into the trial, of matters which are irrelevant, inadmissible and prejudicial. * * * It also serves the useful purpose of raising and pointing out before trial, certain evidentiary rulings that the Court may be called upon to make. By its very nature, when properly drawn, its grant cannot be error. It is not a ruling on evidence. It adds a procedural step prior to the offer of evidence.’ ”
Maurer at 259-260, fn. 14, quoting with approval from Palmer, Ohio Rules of Evidence, Rules Manual (1984), at 446, adds:
“ 'Although extremely useful as a trial technique, the ruling in a motion in limine does not preserve the record on appeal. The ruling is as [sic] tentative, preliminary or presumptive ruling-about an evidentiary issue that is anticipated but has not yet been presented in its full context. An appellate court need not review the propriety of such an order unless the claimed error is preserved by an objection, proffer, or ruling on the record when the issue is actually reached and the context is developed at trial.’ ” (Emphasis sic.)
In this case the record is devoid of any attempt by appellee to offer its expert witness at trial. Nor do we find where counsel made a proffer of the evidence or objected to its exclusion at the proper time during the trial.
Nevertheless, we find that in this case appellants’ “motion in limine” expressly requested a final court order preventing introduction of the challenged evidence during the trial. Given the fact that the hearing on the motion was held immediately prior to trial, and that the motion was sustained, we believe that under the circumstances of this case appellee’s failure to object did not constitute a waiver of its challenge. Accordingly, it is proper in this case for appellate review to consider the merits of the trial court’s ruling. Cf. State v. Davidson (1985), 17 Ohio St. 3d 132, syllabus.
Appellants’ memorandum in support of their motion for prejudgment interest argued that appellee did not act in good faith during their various attempts to reach a settlement. Evidence was presented which documented appellants’ attempts at reaching a compromise and appellee’s perfunctory rejection of each. In some cases, appellee responded with an absurdly low offer. Through an affidavit and other documents, appellants produced evidence that appellee had delayed negotiations and caused appellants time and effort in assembling photographs, evidence of actual damages and other information only to unreasonably reject offers which constituted a reasonable basis for settlement discussions. The trial court obviously did not abuse its discretion when, after conducting a hearing, it found appellee’s lack of good faith well-documented.
R.C. 1343.03(C) (see fn. 1) is remedial in nature to the extent it provides procedures to remedy wrongs and abuses. However, its application does not hinge upon, nor does it seek to redress, the underlying tort. Rather, it seeks to remedy the subsequent misconduct of the losing party who fails to make a good-faith effort to settle the case. As such, the penalty imposed is an award of interest on the judgment in favor of the prevailing litigant.
This substantive benefit is to be “computed from the date the cause of action accrued to *88the date on which the money is paid * * *.” Id. In the instant case, the cause accrued prior to the effective date of the statute but the judgment was entered after the statute went into effect. In Wilfong v. Batdorf (1983), 6 Ohio St. 3d 100, 103-104, we observed that “* * * when a statute affects procedural rights, as opposed to substantive rights, the constitutional restraints on retrospective application are lifted. * * *” (Citations omitted.)
This statute not only provides the method by which the interest shall be computed, it also creates the right to have the unliquidated claim made subject to interest if the reasons for the assessment as stated in the statute can be met.
Since the statute is concerned with appellee’s continuing misconduct (i.e., lack of good faith in negotiating a settlement) until the time of judgment, and not the underlying tort, we believe it is appropriate to allow interest to be calculated from the effective date of the statute until “the money is paid.” However, appellee’s lack of good faith occurring prior to the effective date of the statute cannot be constitutionally penalized. Section 28, Article II of the Ohio Constitution.