
652 N.W.2d 669 (2002)
252 Mich. App. 490
William C. DESSART and Sheila A. Dessart, Plaintiffs-Appellants,
v.
Lynn Marie BURAK and Bryan R. Burak, Defendants-Appellees.
Docket No. 233844.
Court of Appeals of Michigan.
Submitted May 23, 2002, at Marquette.
Decided August 13, 2002, at 9:00 a.m.
Released for Publication October 29, 2002.
*670 Petrucelli & Petrucelli, P.C. (by Jonny L. Waara), Iron River, for the plaintiffs.
Peterson, DeGrand, Reardon, Hall & Pearson, P.C. (by Daniel R. DeGrand), Escanaba, for the defendants.
Before: RICHARD ALLEN GRIFFIN, P.J., and HOOD and SAWYER, JJ.
RICHARD ALLEN GRIFFIN, P.J.
Plaintiffs appeal as of right from an order entered by the trial court denying *671 their motion for mediation sanctions under MCR 2.403(O). We affirm. In so doing, we hold that in adjusting a verdict for purposes of MCR 2.403(O)(3), the term "assessable costs" set forth therein includes only those costs taxable in a civil action incurred from the filing of the complaint to the date of mediation; "assessable costs" do not encompass postmediation costs or attorney fees.

I
This is a third-party automobile negligence action arising from a collision between vehicles driven by plaintiff William Dessart and defendant Lynn Burak that left Dessart with a neck injury and associated shoulder and arm pain. In 1999, a mediation panel evaluated the case at $120,000. Plaintiffs, husband and wife, accepted the evaluation, but defendants[1] rejected it. The case then proceeded to trial, and the jury awarded plaintiffs past noneconomic damages totaling $100,000.[2]
On November 7, 2000, after entry of judgment, plaintiffs filed a motion for mediation sanctions under MCR 2.403.[3] That rule provides in pertinent part:
(O) Rejecting Party's Liability for Costs.
(1) If a party has rejected an evaluation and the action proceeds to verdict, that party must pay the opposing party's actual costs unless the verdict is more favorable to the rejecting party than the case evaluation....

* * *
(3) For the purpose of subrule (O)(1), a verdict must be adjusted by adding to it assessable costs and interest on the amount of the verdict from the filing of the complaint to the date of the case evaluation .... After this adjustment, the verdict is considered more favorable to a defendant if it is more than 10 percent below the evaluation, and is considered more favorable to the plaintiff if it is more than 10 percent above the evaluation....

* * *
(6) For the purpose of this rule, actual costs are
(a) those costs taxable in any civil action, and
(b) a reasonable attorney fee based on a reasonable hourly or daily rate as determined by the trial judge for services necessitated by the rejection of the case evaluation. [Emphasis added.]
In the instant case, the parties agree that plaintiffs are entitled to mediation sanctions pursuant to MCR 2.403(O) if the adjusted verdict exceeds $108,000. The parties disagree, however, regarding the computation of the adjusted verdict under MCR 2.403(O)(3); specifically, the scope of "assessable costs" is contested in this case.

II
Relying on Beach v. State Farm Mut. Automobile Ins. Co., 216 Mich.App. 612, *672 550 N.W.2d 580 (1996), plaintiffs argued to the trial court that "assessable costs" should include statutory taxable costs from the date the complaint was filed through verdict and reasonable attorney fees from the date of mediation through verdict necessitated by defendants' rejection of the mediation award. Plaintiffs in essence contended that the terms "assessable costs" and "actual costs" contained in MCR 2.403(O) are synonymous. Defendants, on the other hand, maintained that under the plain language of MCR 2.403(O)(3), "assessable costs" should include only those taxable costs incurred from the date the complaint was filed through the time of the mediation evaluation.[4] The trial court agreed with defendants and declined to follow Beach, supra. The court determined that "assessable costs" for purposes of adjusting the verdict pursuant to MCR 2.403(O)(3) include only taxable costs from the date the complaint is filed to the date of the mediation award, as well as interest for the same period. Because this computation resulted in an adjusted verdict less than $108,000, the trial court denied plaintiffs' request for mediation sanctions.
On appeal, plaintiffs reiterate their argument made to the trial court and contend that in light of this Court's decisions in Beach, supra, and Grow v. W.A. Thomas Co., 236 Mich.App. 696, 718-719, 601 N.W.2d 426 (1999), the trial court erred as a matter of law in refusing to award mediation sanctions. We disagree.

III
We review de novo a trial court's decision to grant or deny a motion for mediation sanctions. Cheron, Inc. v. Don Jones, Inc., 244 Mich.App. 212, 218, 625 N.W.2d 93 (2000); Meyer v. Center Line, 242 Mich.App. 560, 577, 619 N.W.2d 182 (2000). Further, interpretation of a court rule, like matters of statutory interpretation, presents a question of law that is reviewed de novo on appeal. Marketos v. American Employers Ins. Co., 465 Mich. 407, 413, 633 N.W.2d 371 (2001).
In Beach, supra at 626, 550 N.W.2d 580, this Court vacated a mediation award in light of other errors in determining taxable costs and interest and remanded the case with the following instructions to the trial court when recalculating the adjusted verdict for purposes of MCR 2.403(O):
The mediation panel unanimously awarded $17,573.75 in plaintiff's favor on October 14, 1993. Assuming that plaintiff raised the same issues at mediation and at trial, the court should add to the $17,500 jury verdict all assessable costs, including costs taxable in a civil action and a reasonable attorney fee incurred from the date of mediation, as well as any interest on the verdict amount from the date the complaint was filed to the date of the mediation evaluation, in order to determine whether plaintiff improved his position at trial by more than ten percent, i.e., plaintiff received more than $19,331.12. MCR 2.403(O)(3), (6). If so, plaintiff is entitled to his actual costs, including attorney fees, pursuant to MCR 2.403(O). [Emphasis added.]
In Grow, supra at 718-719, 601 N.W.2d 426, this Court expressed its approval of a similar calculation, taking into account the assessable costs for the entire action rather than to the date of the mediation evaluation:
In light of our holding, we find moot defendant's alternative argument that, pursuant to MCR 2.403(O)(3), the "adjusted verdict" was more favorable to *673 defendants than the mediation evaluation. We note briefly, however, that the trial court properly interpreted this subrule, and added to the verdict all assessable costs, including attorney fees, rather than only those costs for the period between the filing of the complaint and the date of the mediation evaluation. See Dale v. Beta-C, Inc., 227 Mich.App. 57, 69, 574 N.W.2d 697 (1997) ("[I]t is a general rule of statutory, as well as grammatical, construction that a modifying clause is confined to the last antecedent unless a contrary intention appears."). [Emphasis added.]
We acknowledge that in both Beach and Grow, this Court construed "assessable costs" in a broad manner to include postmediation costs and attorney fees. However, we decline to adopt the rationale of these cases for several reasons. First, in both cases, the statements regarding assessable costs are merely obiter dicta[5] and, therefore, do not constitute binding precedent under MCR 7.215(I)(1). The Grow Court noted that this "alternative argument" was moot in light of its disposition of other issues in the case. Likewise, the Beach Court's conclusion in this regard was based on certain contingencies ("[a]ssuming that plaintiff raised the same issues at mediation and at trial.... "[Beach, supra at 626, 550 N.W.2d 580]) and was not essential to the disposition of the case. "It is a well settled rule that obiter dicta lacks the force of an adjudication and is not binding under the principle of stare decisis." People v. Borchard-Ruhland, 460 Mich. 278, 286, n. 4, 597 N.W.2d 1 (1999). See also Edelberg v. Leco Corp., 236 Mich.App. 177, 183, 599 N.W.2d 785 (1999).
Further, Beach can be distinguished from the present action because it entailed a first-party no-fault insurance claim in which attorney fees can, under certain circumstances, be an element of a plaintiff's damages. See Beach, supra at 628, 550 N.W.2d 580; MCL 500.3148(1). Thus, the propriety of attorney fees in the context of a verdict adjustment is unique to Beach; in assessing the mediation evaluation, a court in such circumstances could examine whether an attorney fee was an intrinsic part of the proposed worth of the case.
In any event, we ultimately conclude that plaintiffs' interpretation of "assessable costs," based on the cited portions of the Beach and Grow cases, contradicts the underlying purpose of the court rule. "The rules governing the interpretation of statutes apply with equal force to the interpretation of court rules." Yudashkin v. Holden, 247 Mich.App. 642, 649, 637 N.W.2d 257 (2001). "A court rule should be construed in accordance with the ordinary and approved usage of the language." St. George Greek Orthodox Church v. Laupmanis Associates, PC, 204 Mich.App. 278, 282, 514 N.W.2d 516 (1994). "It should also be construed in light of its purpose and the object to be accomplished by its operation." Id.
At the time of the mediation evaluation in this case, MCR 2.403(O)(3) provided, in pertinent part, that a verdict "must be adjusted by adding to it assessable costs and interest on the amount of the verdict from the filing of the complaint to the date of the mediation evaluation." (Emphasis added.)[6] Although the Grow Court accurately *674 noted the well-established principle of statutory construction that a modifying clause or phrase will be construed to modify only the last antecedent unless a contrary intention appears,[7] and thereby interpreted the phrase "from the filing of the complaint to the date of the mediation evaluation" as modifying only "interest on the amount of the verdict" and not "assessable costs," we conclude that such a reading of the court rule skews its dominant purpose.
MCR 2.403(O)(3) does not expressly or impliedly allow for the inclusion of postmediation costs or any attorney fees, for reasons that are well founded. The overall purpose of the mediation rule is to encourage settlement, deter protracted litigation, and expedite and simplify the final settlement of cases. Neal v. Neal, 219 Mich.App. 490, 493, 557 N.W.2d 133 (1996); Detroit v. Kallow Corp., 195 Mich. App. 227, 230, 489 N.W.2d 500 (1992). The sanction provision of the rule places the burden of litigation costs on the party who demands a trial by rejecting a proposed mediation award. Id. However, as noted above, the purpose of the mediation sanction provisions is not to act as a punitive measure but rather is intended to foster settlement. In order to do so, a trial court must review the mediation evaluation in light of the circumstances that existed at the time of the mediation itself. If, as plaintiffs propose, postmediation litigation costs and attorney fees are included in the amount of the adjusted verdict, the risk of going to trial would be minimized, thereby undermining the court rule's purpose of discouraging litigation.
Plaintiffs' suggested interpretation of MCR 2.403(O)(3) defies its underpinnings. As authors Dean and Longhofer note in their commentary in Michigan Court Rules Practice (4th ed.), 2001 pocket part, § 2403.20, p. 34, the Grow Court's interpretation of MCR 2.403(O)(3)
creates an artificial distinction between the adjustment for interest and the adjustment for costs, and runs contrary to the evident purpose of the adjustment, i.e., to permit an "apples-to-apples" comparison between the verdict and the mediation evaluation.
We therefore hold that in determining the propriety of sanctions pursuant to MCR 2.403(O)(3), if a party has rejected a mediation award and the case proceeds to trial, the verdict must be adjusted by adding to it "assessable costs," not "actual costs," incurred from the filing of the action to the date of the mediation evaluation, as well as interest for the same period. Only after this calculation is made and it is determined that sanctions are appropriate under the ten percent calculation of subrule O(3) is the payment of "actual costs," as defined in subrule O(6), implicated.
Applying these principles to the present case, we conclude that the trial court did not err in denying plaintiffs' motion for mediation sanctions. In adjusting the verdict, the court calculated "assessable costs" and interest for the appropriate period from the filing of the action to the date of the mediation evaluation. Because plaintiffs have not reached the threshold level of an adjusted verdict of $108,000, they are not entitled to sanctions under MCR 2.403(O)(3).
Affirmed.
NOTES
[1]  Lynn Burak's husband, Bryan Burak, owned the vehicle that she was driving with his permission at the time of the accident.
[2]  The jury awarded $75,000 to plaintiff William Dessart and $25,000 to plaintiff Sheila Dessart.
[3]  Effective August 1, 2000, the procedure prescribed in MCR 2.403 was renamed "case evaluation." "Mediation" is now specifically defined by MCR 2.411(A)(2) as facilitative mediation in which a neutral third party attempts to bring the litigants together and reach a settlement. Because this case involves a mediation evaluation under the process before the 2000 amendment of MCR 2.403, this opinion refers to the term "mediation" in its preamendment sense.
[4]  Both parties agree that pursuant to MCR 2.403(O)(3), interest is assessable only from the date of the filing of the complaint to the date of mediation.
[5]  In People v. Higuera, 244 Mich.App. 429, 437, 625 N.W.2d 444 (2001), this Court noted that "Black's Law Dictionary defines obiter dictum as `[a] judicial comment made during the course of delivering a judicial opinion, but one that is unnecessary to the decision in the case and therefore not precedential (though it may be considered persuasive).'"
[6]  As amended effective August 1, 2000, the term "case evaluation" has been substituted for "mediation evaluation."
[7]  See Dale v. Beta-C, Inc., 227 Mich.App. 57, 69, 574 N.W.2d 697 (1997); Sun Valley Foods Co. v. Ward, 460 Mich. 230, 237, 596 N.W.2d 119 (1999).
