OPINION
JIM R. WRIGHT, Chief Justice.This is an appeal from the trial court’s order denying Russell Brent Child’s motion for enforcement and granting in part Hillary Brandise Leverton’s petition to modify the parent-child relationship. We affirm.
On September 18, 2002, Child and Leverton entered into a mediated settlement agreement in their divorce case. At that time as well as at the time the trial court entered the decree of divorce, Lever-ton and the parties’ two children lived in Taylor County. In accordance with the mediated settlement agreement, the Feb*695ruary 25, 2003 divorce decree contained language restricting Leverton’s right to establish the legal residence of the children, A.C. and B.C. The divorce decree provides that Leverton shall have the exclusive right:
[T]o determine and establish the children’s legal residence and domicile within Denton and Taylor Counties, Texas, through May 2003; thereafter, the right to determine and establish the children’s legal residence and domicile within Den-ton and Tarrant Counties, Texas; provided, that determining and establishing such residence within Tarrant County shall be east of Highway 1220 and north of Highway 183.
On May 15, 2003, Leverton filed a petition to modify the geographical restrictions in the decree.1 On November 17, 2003, Child filed a motion for enforcement. He alleged that Leverton had failed to comply with the divorce decree because she had not established the children’s residence in either Denton County or Tarrant County. Child asked the trial court to hold Lever-ton in contempt and to require Leverton to move the children from Taylor County to either Denton or Tarrant County. On February 9, 2004, the trial court held a hearing on the motion and issued its order on March 24, 2004. The trial court found that the terms of the order which Child sought to enforce were “not specific enough” for the remedy sought. In its order, the trial court stated:
[I]t is in the best interest of the children that the residence restriction as contained in the Final Decree of Divorce be modified to the extent that any time requirement for the return of HILLARY BRANDISE LEVERTON be removed. IT IS FURTHER THEREFORE ORDERED, ADJUDGED, AND DECREED that HILLARY BRAN-DISE LEVERTON shall be the parent Joint Managing Conservator with the exclusive right to designate the primary residence of the children within Taylor and/or Denton and/or Tarrant Counties, Texas, provided that in determining and establishing such residence within Tar-rant County, Texas, said residence shall be East of Highway 1120 and North of Highway 183.
It is from this order that Child appeals.2
In his first point of error, Child argues that the trial court erred in finding that the order was not specific enough to be enforced. In his second point of error, Child contends that the trial court erred in failing to enforce the provisions regarding designation of his children’s residence in Denton or Tarrant Counties. In his third point of error, Child maintains that the trial court abused its discretion when it found that there had been a material and substantial change in circumstances since the date of the agreement.
We will first address Child’s third point of error. We review a trial court’s order modifying conservatorship under an abuse of discretion standard. See Wyatt v. Wyatt, 104 S.W.3d 337 (Tex.App.-Dallas 2003, no pet.); see also Jenkins v. Jenkins, 16 S.W.3d 473 (Tex.App.-El Paso 2000, no pet.). The test for abuse of discretion is whether the trial court acted in an arbitrary and unreasonable manner or whether it acted without reference to any guiding principles. Downer v. Aquamarine Operators, Inc., 701 S.W.2d 238, 242 (Tex.1985). While legal and fac*696tual sufficiency issues are not independent grounds of error in cases of this nature, they are factors which can be considered in determining whether an abuse of discretion has occurred. In re T.D.C., 91 S.W.3d 865, 872 (Tex.App.-Fort Worth 2002, pet. denied).
An appellate court makes a two-prong inquiry when it determines whether legal or factual insufficiency has resulted in an abuse of discretion: (1) whether the trial court had sufficient information upon which it might exercise its discretion and (2) whether the trial court erred when it applied that discretion. Id. The sufficiency review is related to the first inquiry. If it is revealed in the first inquiry that there was sufficient evidence, then we must determine whether the trial court made a reasonable decision, and that involves a conclusion that the trial court’s decision was neither arbitrary nor unreasonable. Id.
In analyzing a legal sufficiency or no-evidence issue, an appellate court must consider the evidence in the light most favorable to the challenged finding and must indulge every reasonable inference that would support it. A reviewing court must credit favorable evidence if a reasonable fact-finder could and disregard contrary evidence unless a reasonable fact-finder could not. The appellate court must determine whether the evidence at trial could enable reasonable and fair-minded people to find the facts at issue. A no-evidence challenge may be sustained only when (1) the record discloses a complete absence of a vital fact, (2) the court is barred by rules of law or of evidence from giving weight to the only evidence offered to prove a vital fact, (3) the only evidence offered to prove a vital fact is no more than a mere scintilla, or (4) the evidence conclusively establishes the opposite of a vital fact. City of Keller v. Wilson, 168 S.W.3d 802 (Tex.2005).
When we consider legal sufficiency in this context, if there is any probative evidence which supports the trial court’s finding, then there is no abuse of discretion. Bates v. Tesar, 81 S.W.3d 411, 425 (Tex.App.-El Paso 2002, no pet.). This remains true even though we might have found the issue otherwise; we cannot substitute our judgment for that of the trial court. Id.
Child is also complaining about the factual sufficiency of a finding upon which he did not have the burden of proof. An assertion that the evidence is “insufficient” to support a fact finding means that the evidence supporting the finding is so weak or the evidence to the contrary is so overwhelming that the finding should be set aside and a new trial ordered. Garza v. Alviar, 395 S.W.2d 821, 823 (Tex.1965). We are required to consider all of the evidence in making this determination. Maritime Overseas Corp. v. Ellis, 971 S.W.2d 402, 406-07 (Tex.1998).
Because the divorce decree in this case was based upon a mediated settlement agreement, Leverton was required to establish that any material change in circumstances occurred subsequent to the mediation. Tex. Fam.Code Ann. § 156.101 (Vernon Supp.2006). The Family Code requires proof of a material and substantial change of circumstances because of res judicata considerations and the State’s desire to prevent constant relitigation with respect to children. See Watts v. Watts, 563 S.W.2d 314, 316 (Tex.Civ.App.-Dallas 1978, writ refd n.r.e.). Leverton had the burden of proof. This required her to produce evidence comparing the circumstances that existed at the time of the parties’ mediation agreement with the circumstances at the time of the modification hearing. See id. at 315; see also London *697v. London, 192 S.W.3d 6, 15 (Tex.App.Houston [14th Dist.] 2005, pet. denied).
The best interest of the children is always the trial court’s primary consideration. In re T.D.C., 91 S.W.3d at 873. But, when a party asks the trial court to modify the residency restrictions contained in the divorce decree, the existing residency provisions are res judicata of the children’s best interest unless and until it is established that there has been a material and substantial change in circumstance. In re M.N.G., 113 S.W.3d 27, 33-34 (Tex.App.-Fort Worth 2003, no pet.).
Both of the children attend school at St. John’s Episcopal Church in Abilene. A.C. attended there at the time of the mediated settlement; B.C. began attending there later. Jeannie Stark, the “principal” of the school testified. Stark testified that A.C. initially was a difficult child at St. John’s. He had a hard time being structured and having a routine. He would also “act out” from time to time. Stark was asked whether A.C. had changed since he first came to St. John’s. Her testimony was that he had become a happier child, was acting out less than before, was very focused, loved to learn, and had “grown up.” Stark shared her concern that A.C. could not handle the change. She believes that stability is important.
Dr. Stephen M. Osborn is a clinical psychologist with some twenty-seven years of practice. He was counseling with Lever-ton and the two children at the time of the mediated settlement agreement and continued to see them at the time of the hearing on the motion to modify. Dr. Osborn originally diagnosed A.C. with an “anxiety disorder and Attention Deficit Disorder.” Since Dr. Osborn began seeing A.C., he had seen improvement in A.C. as a result of schooling, structure, counseling, and medication. Dr. Osborn testified that A.C. needed stability, structure, and security. Dr. Osborn also testified that moving A.C. would involve “negative adjustments” by changing his routine and structure; it would be “advisable” for A.C. to remain in Abilene. Principal Stark agreed with Dr. Osborn’s opinion that A.C. needed stability.
Leverton testified that if she moved it would be more difficult for her to obtain a music education degree because she would lose hours and would be under a new degree plan due to changes made by universities available to her in Denton County or Tarrant County, that she would not be able to earn as much money and have as much flexibility as she could working for her father in Abilene, and that moving would be hard for A.C.
Child testified that it would be in the children’s best interest to move back to either Denton or Tarrant Counties to be able to have more contact with him. Child stated that his extended family could help with the children’s after-school care and that the children could participate in more activities. Child disagreed with the other witnesses, and he does not feel that moving from Taylor County would be detrimental to A.C.
Child points out that at the time of the mediated settlement agreement Leverton and the children lived in Taylor County, Leverton was enrolled in McMurry University, Leverton worked for her father at a certain salary, A.C. was enrolled in St. John’s, Leverton’s father was paying the tuition at St. John’s, Child worked for Goodman Homes, the children were in counseling with Dr. Osborn, Leverton’s parents and siblings lived in Taylor County, and Child’s parents and siblings lived close to him in the Metroplex. He argues that none of that changed between the date of the agreement and the hearing on the motion to modify except that he moved *698out of the marital home because the home was sold pursuant to the decree, B.C. enrolled in St. John’s, and Leverton learned that she would lose course credits if she changed schools. Child argues that the changes that have occurred are not material and substantial.
There are many cases in which a noncustodial parent seeks modification of orders regarding conservatorship in order to prevent a custodial parent from moving to a new location. There are also many cases in which a noncustodial parent seeks to enforce a provision in an order or decree which contains language preventing a custodial parent from moving to a new location. This case is different. Here, Child, the noncustodial parent seeks an order by which Leverton the custodial parent would be required not to refrain from moving to a new location but, rather, to move to a new location; Leverton seeks an order allowing she and the children to stay where they are.
To maintain the stability of children is one of the reasons behind the requirement that a material and substantial change in circumstance be proved before inquiry is made into the best interest of the children. The importance of stability for children is recognized as a matter of public policy in Texas. “The public policy of this state is to: provide a ... stable ... environment for the child.” Tex. Fam.Code Ann. § 153.001(a)(2) (Vernon 2002).
If, then, stability is an important consideration, in cases like the one before us where Leverton is not trying to move but rather wants to keep the children where they are, courts should be able to consider the current stability of the children as evidence of whether there has been a material and substantial change in circumstance. Such evidence might very well serve as evidence not only of a material and substantial change in circumstance but, also, as evidence of the next inquiry— the best interest of the children. We cannot know the motive of the parents in taking whatever actions they have taken, but that is not our concern. Our concern in cases of this nature is for the children, including a concern for their stability.
Although Justice Burgess in AD.H. disagreed with the majority and would have held that the trial court there did not abuse its discretion, he stated the generally accepted notion that, although an appellate court might have reached a different result than the trial court, it is not the job of an appellate court to reweigh the evidence and reverse to get that preferred result. In re A.D.H., 979 S.W.2d 445, 452 (Tex.App.-Beaumont 1998, no pet.) (Burgess, J., dissenting opinion). A reviewing court should give great deference to the trial court’s judgment. The trial court is face-to-face with the parties and the witnesses, watches their demeanor, observes their personalities, and “senses the forces and powers which motivate them.” Id. Those principles dictate to us that we cannot substitute our judgment for that of the trial court.
We have reviewed legal and factual sufficiency considerations as factors to be considered in determining whether the trial court abused its discretion. We hold that the evidence which we have outlined above is some evidence of a material and substantial change in circumstances and is also evidence bearing upon the best interest of the children. We also hold that the evidence is not so contrary to the overwhelming weight of the evidence as to be clearly wrong and manifestly unjust. The trial court had before it sufficient information upon which it might exercise its discretion; and, based upon the evidence and the applicable law, the trial court did not err in the application of that discretion. See In re T.D.C., 91 S.W.3d at 872. After *699a consideration of all of the factors relating to an abuse of discretion in cases of this nature, we hold that the trial court did not act in an arbitrary and unreasonable manner and neither did it act without reference to guiding principles. Therefore, the trial court did not abuse its discretion when it modified the provisions relating to the residency of the children. Child’s third point of error is overruled.
Because the trial court modified the order regarding the residency of the children and because we are affirming the decision of the trial court, we do not reach Child’s points of error one and two pertaining to the enforcement of the original order.
The judgment of the trial court is affirmed.
. Leverton also sought to have the child support payment increased. The trial court denied Leverton’s request for increased child support; that ruling has not been appealed.
. Child has expressly waived his original request that the trial court hold Leverton in contempt.