895 S.W.2d 481 (1995)
In the Matter of A.F., Appellant.
No. 03-93-00653-CV.
Court of Appeals of Texas, Austin.
March 15, 1995.
Scott K. Stevens, Belton, for appellant.
Wm. Nelson Barnes, Asst. County Atty., Belton, for appellee.
Before POWERS, KIDD and BEA ANN SMITH, JJ.
BEA ANN SMITH, Justice.
A Bell County jury found that appellant A.F., a juvenile, had engaged in delinquent conduct by attempting to commit capital murder. See Tex.Fam.Code Ann. §§ 53.045(a)(6), 54.03(a), (c) (West Supp. 1995). The trial court sentenced appellant to twenty-five years' commitment in the Texas Youth Commission with a transfer to the Texas Department of Criminal JusticeInstitutional Division, and made an affirmative finding that a firearm was used in the commission of the delinquent conduct. See id. §§ 54.04(d)(3), (g). Appellant advances ninety-three points of error, the majority of which allege that the trial court abused its discretion by (1) admitting in evidence portions of a social history report at the disposition hearing; (2) allowing the state to reopen its case-in-chief after resting; and (3) admitting in evidence a witness statement without a proper limiting instruction. Appellant's remaining point of error challenges the sufficiency of the evidence supporting the trial court's finding that a firearm was used during the commission of the delinquent conduct. We will reform the juvenile court's disposition order and affirm the judgment of delinquent conduct.
FACTUAL BACKGROUND AND DISCUSSION
In the early afternoon of April 25, 1993, appellant and D.M.[1] entered a convenience store in Killeen, Texas. The youths eventually went to the cashier's counter and purchased a soft drink. The proprietor, Yong Wan Pak, dropped a dime while making change for the purchase. As Pak reached down to pick up the coin, D.M. shot him in the face with a .25 caliber pistol. As Pak fell to the ground, his shoulder pushed the cash register drawer shut. The youths fled the scene empty-handed, and were apprehended later that day.
All but one of appellant's points of error ask us to conclude that the trial court abused its discretion in some aspect of A.F.'s adjudication or disposition hearings. A trial court abuses its discretion only when it acts in an unreasonable and arbitrary manner, or when it acts without reference to any guiding principles. Beaumont Bank, N.A. v. Buller, 806 S.W.2d 223, 226 (Tex.1991); Downer v. Aquamarine Operators, Inc., 701 S.W.2d 238, 241-42 (Tex.1985). This Court may not reverse for abuse of discretion merely because we disagree with a decision of the trial court. Buller, 806 S.W.2d at 226; Downer, 701 S.W.2d at 242.
Appellant claims in his first and second points of error that the trial court abused its discretion by admitting in evidence a witness statement without a contemporaneous limiting instruction and without an adequate limiting instruction in the jury charge. The statement in question was made by Henry Quinones on the day of the offense; his statement and testimony largely concerned his interaction with appellant and D.M. that day. When Quinones's testimony at the hearing varied from his prior statement, the State attempted to impeach his testimony with portions of his statement. Quinones then indicated that he did not voluntarily make the statement and that the statement was not in his words.[2]
Later in the adjudication hearing, the State called Officer Dennis Baldwin of the Killeen Police Department to impeach Quinones's assertion that the statement was involuntary and inaccurate. When the State sought to introduce the statement itself, appellant objected and requested a limiting instruction. The court declared a recess and, after hearing arguments from counsel, concluded that the statement would be admitted to show the voluntariness of the statement. When the jury returned, the court admitted in evidence a redacted version of the statement and overruled appellant's objection to its admission, but did not give a limiting instruction. Appellant did not obtain a ruling on his previous request for a limiting instruction and did not request such an instruction once the statement was admitted. The court subsequently denied appellant's request to include in the jury charge a limiting instruction regarding the statement itself.
Appellant claims that Texas Rule of Civil Evidence 105(a) required the trial court to provide a limiting instruction.[3] However, appellant failed to comply with that rule's requirement that the request for a limiting instruction be made when the evidence is admitted. See Tex.R.Civ.Evid. 105(a); McNiel v. State, 757 S.W.2d 129, 136 (Tex. App.Houston [1st Dist.] 1988, pet. ref'd) (stating that Texas Rule of Criminal Evidence 105(a)[4] provides for limiting instruction only at time evidence is admitted). An objection to or request for an instruction in the jury charge is not sufficient to preserve error if no limiting instruction is requested when the evidence is admitted. Id. Thus, the trial court had no obligation under Rule 105(a) to provide a limiting instruction for Quinones's statement. Appellant's first and second points of error are overruled.
Appellant alleges in his fourth and fifth points of error that the trial court abused its discretion by allowing the State to reopen its case-in-chief after resting. Texas Rule of Civil Procedure 270 provides in pertinent part that "at any time the court may permit additional evidence to be offered where it clearly appears to be necessary to the due administration of justice." Tex. R.Civ.P. 270. This decision is within the sound discretion of the trial court. Word of Faith World Outreach v. Oechsner, 669 S.W.2d 364, 366-67 (Tex.App.Dallas 1984, no writ). In determining whether to grant a motion to reopen, the trial court considers whether (1) the moving party showed due diligence in obtaining the evidence; (2) the proffered evidence is decisive; (3) reception of such evidence will cause undue delay; and (4) granting the motion will cause an injustice. Id.
After hearing argument on the issue, the trial court concluded that the proffered evidence "may be decisive [and] that no undue delay in the trial will result upon granting the Motion to Reopen and that the Motion to Reopen will not work an injustice on this juvenile respondent." Although the court made no finding of due diligence, that factor "is merely one of several factors to be considered" by the trial court in ruling on a motion to reopen. Id. Appellant argues that none of the Word of Faith factors was present. However, this Court may not substitute its judgment for a decision made within the trial court's sound discretion. Buller, 806 S.W.2d at 226. In light of the trial court's explicit findings, and mindful that the court's discretion in this matter "should be liberally exercised in the interest of permitting both sides to fully develop the case in the interest of justice," we cannot say that the trial court abused its discretion in allowing the State to reopen. See Word of Faith, 669 S.W.2d at 367. Points of error four and five are overruled.
Appellant's points of error six through ninety-three concern the probation officer's "social history" report admitted in evidence at the disposition hearing. The Texas Family Code provides that, following an adjudication of delinquent conduct, a separate hearing shall be held to determine the disposition of the case. See Tex.Fam.Code Ann. § 54.04(a) (West Supp.1995). Because appellant was found to have engaged in delinquent conduct by attempting to commit capital murder, he was entitled to a jury at the disposition hearing. Id. Appellant waived this right, and the trial court determined the disposition of his case.
Appellant claims that certain portions of the social history report, introduced pursuant to Family Code section 54.04(b), should have been excluded under various provisions of the Texas Rules of Evidence. Specifically, appellant argues that portions of the report were inadmissible because they were not relevant, see Tex.R.Civ.Evid. 402; their probative value was substantially outweighed by their prejudicial effect, see Tex.R.Civ.Evid. 403; and they contained specific instances of misconduct used to show appellant's character, see Tex.R.Civ.Evid. 404, 405.
Texas Rule of Civil Evidence 101(b) states, "Except as otherwise provided by statute, these rules govern civil proceedings in all courts of Texas other than small claims courts." Before reaching appellant's specific points of error, we must determine whether Family Code section 54.04(b) pre-empts application of the rules of evidence to the social history report. Section 54.04(b) of the Texas Family Code provides: "At the disposition hearing, the juvenile court may consider written reports from probation officers, professional court employees, or professional consultants in addition to the testimony of witnesses." Tex.Fam.Code Ann. § 54.04(b) (West Supp.1995).[5] This provision places no apparent limit on the nature or type of information that may be contained in these social history reports.
While the legislature explicitly made adjudication hearings subject to the rules of civil evidence, it did not subject to the rules any proceeding which calls for review of the social history report. See id. § 54.03(d) (West 1986).[6] The legislative intent expressed through a statute "should be ascertained from the entire act, and not from isolated portions thereof." City of Mason v. West Tex. Utils. Co., 150 Tex. 18, 237 S.W.2d 273, 278 (1951). Every word of a statute is presumed to have been used for a purpose, and every word excluded must also be presumed to have been excluded for a purpose. Cameron v. Terrell & Garrett, Inc., 618 S.W.2d 535, 540 (Tex.1981); Southwestern Bell Tel. Co. v. Public Util. Comm'n, 888 S.W.2d 921, 926 (Tex.App.Austin 1994, writ requested). Under these rules of construction, the statutory design of the Family Code manifests a legislative intent not to restrict the information received in these non-adjudicative juvenile proceedings by strict application of the rules of evidence.
This position finds accord among our sister courts. "The rules of evidence have traditionally been relaxed in procedures concerning the welfare of children." In the Matter of J.R.C., 551 S.W.2d 748, 752 (Tex. Civ.App.Texarkana 1977, writ ref'd n.r.e.). In J.R.C., the court rejected a hearsay challenge to the use of the social history report in a transfer to criminal court proceeding. See Tex.Fam.Code Ann. § 54.02(e) (West 1986). The court observed that section 54.02(e) provided an explicit exception to the hearsay rule, and reasoned that this exception was "particularly appropriate in a proceeding... where the purpose is not to determine guilt but merely to evaluate the background and maturity of the child in order to determine if he may be rehabilitated or if he should be subject to criminal proceedings." J.R.C., 551 S.W.2d at 752. As in a transfer to criminal court proceeding, a primary purpose of the disposition hearing is to determine a child's need for rehabilitation. See Tex.Fam.Code Ann. § 54.02(c) (West Supp.1995).
There appears to be no authority limiting the content of reports envisioned by section 54.04(b). See In the Matter of C.D.R., 827 S.W.2d 589, 592 (Tex.App.Houston [1st Dist.] 1992, no writ). Courts agree that the purpose of section 54.04(b) is to broaden the pool of information available for the trial court's consideration at the disposition hearing. In denying a due process challenge to the use of a social history report, one court of appeals noted that "there is good reason to give the judge the latitude afforded by § 54.04(b) to consider all factors in deciding what disposition to make." Tyler v. Texas, 512 S.W.2d 46, 48 (Tex.Civ.App.Beaumont 1974, no writ) (emphasis added). In a concurring opinion, Justice Keith explained that the juvenile court's "obligation of entering a judgment which is to the best interest of the minor as well as to society in general" requires the court to "have available for use all of the recognized tools and information in order to enable [it] to discharge this responsibility." Id. at 50. The Fifth Court of Appeals echoed this sentiment, stating that section 54.04(b) "is intended to broaden, not contract, the pool of information upon which the court makes its decision." In the Matter of A.N.M., 542 S.W.2d 916, 921 (Tex.Civ. App.Dallas 1976, no writ). Subjecting social history reports to a rigid application of the rules of civil evidence would undoubtedly restrict the substantive information admissible, undermining the objective of considering all relevant factors in determining an appropriate disposition. We believe the legislature was mindful of this objective when it chose to suspend application of the rules of evidence at the disposition hearing.
In light of the Family Code's broad objective of addressing the needs of the juvenile while protecting the public in making a disposition, we conclude that the social history report described in section 54.04(b) is not subject to a strict application of the rules of civil evidence. Accordingly, the trial court did not abuse its discretion by refusing to exclude portions of the social history report based on the rules of evidence. Appellant's points of error six through ninety-three are overruled.
In his third point of error, appellant alleges that the evidence was legally and factually insufficient to support the deadly weapon finding made by the trial court pursuant to Family Code section 54.04(g), which reads:
If the court orders a disposition under Subsection (d)(3) of this section and there is an affirmative finding that the defendant used or exhibited a deadly weapon during the commission of the conduct or during immediate flight from commission of the conduct, the court shall enter the finding in the order. If there is an affirmative finding that the deadly weapon was a firearm, the court shall enter that finding in the order.
Tex.Fam.Code Ann. § 54.04(g) (West Supp. 1995). In its order of disposition, the juvenile court found "that a deadly weapon was used and exhibited in the commission of this offense and that the deadly weapon was a firearm." Because appellant was tried as a party to attempted capital murder, the trial court's finding does not necessarily reflect that the appellant personally used or exhibited a deadly weapon. To address appellant's sufficiency claims, we must first determine whether section 54.04(g) requires a specific affirmative finding that the defendant personally used or exhibited a firearm.
Because it appears that no court has addressed this question, we will draw on precedent from criminal cases interpreting a similar statute. The Code of Criminal Procedure provision in effect before 1991 governing the finding of a deadly weapon is almost identical to section 54.04(g). See Act of June 10, 1977, 65th Leg., R.S., ch. 347, § 1, 1977 Tex.Gen. Laws 925, 926 (relettered and amended by Act of June 15, 1991, 72d Leg., R.S., ch. 541, § 1, 1991 Tex.Gen.Laws 1876, 1876-77; now codified at Tex.Code Crim.Proc.Ann. § 42.12 sec. 3g(a)(2) (West Supp.1995)). In interpreting this provision, the Court of Criminal Appeals held that when the defendant is guilty as a party, an affirmative finding under that provision requires "a specific finding by the trier of facts that the defendant personally used or exhibited a deadly weapon." Reyes v. State, 741 S.W.2d 414, 432-33 (Tex. Crim.App.1987). The trial court should determine the issue and make this affirmative finding when it sits as the trier of fact at the punishment stage. See Travelstead v. State, 693 S.W.2d 400, 402 (Tex.Crim.App.1985).
Although the legislature amended this provision of the Code of Criminal Procedure to allow an affirmative deadly weapon finding without the personal use or exhibition described in Reyes, it did not so amend section 54.04(g) of the Family Code. Accordingly, we hold that when a juvenile is adjudicated delinquent as a party to the conduct, an affirmative finding under section 54.04(g) requires a specific finding by the trier of fact that the defendant personally used or exhibited a deadly weapon during the commission of the conduct or during immediate flight therefrom.[7]
The record reveals that the State tried appellant only as a party to the delinquent conduct. Indeed, the State adduced evidence at the adjudication hearing that D.M., not appellant, shot Pak. No evidence affirmatively indicated that appellant possessed a firearm during the offense or subsequent flight. The jury charge addressed appellant's involvement in the alleged delinquent conduct only as a party and did not provide for a finding that appellant personally used or exhibited a deadly weapon. In the absence of such a specific finding by either of the triers of fact, and in light of the State's reliance on the theory of parties, we conclude that the juvenile court's finding that a deadly weapon "was used" is insufficient as a matter of law to support an affirmative finding under section 54.04(g). Thus, we need not reach appellant's factual sufficiency claims. We sustain appellant's third point of error. The disposition order is reformed to delete the juvenile court's affirmative finding that a deadly weapon was used.
As reformed, the disposition order of the juvenile court is affirmed.
NOTES
[1] Because the record does not clearly indicate whether this individual was a juvenile or adult at the time of the offense, we will refer to him as D.M.
[2] The State impeached Quinones's testimony by having Quinones read excerpts from his prior statement. At appellant's request, the trial court gave a limiting instruction before Quinones read these excerpts, and also gave a limiting instruction in the jury charge regarding them. The State later impeached Quinones's testimony regarding the voluntariness of his statement by introducing the statement itself. Appellant's first and second points of error are directed at this second instance of impeachment.
[3] The Texas Rules of Civil Procedure govern juvenile proceedings except when in conflict with Family Code Provisions. Tex.Fam.Code Ann. § 51.17 (West 1986). The adjudication hearing must be conducted in accordance with the Texas Rules of Civil Evidence. Id. § 54.03(d).
[4] The texts of civil and criminal evidence rules 105(a) are identical.
[5] The kind of report described in section 54.04(b) may also be considered by the court at detention hearings, Tex.Fam.Code Ann. § 54.01(c) (West 1986); transfer to criminal court hearings, id. § 54.02(e); release hearings, id. § 54.11 (West Supp.1995); and modification of disposition hearings, id. § 54.05(e) (West 1986).
[6] Had appellant opted for a jury at the disposition hearing, however, the social history report would have been inadmissible. See Tex.Fam. Code Ann. § 54.03(d) (West 1986).
[7] A leading commentator on Texas juvenile law has also interpreted section 54.04(g) to require a finding that the juvenile respondent personally used or exhibited a deadly weapon. See Robert O. Dawson, The Third Justice System: The New Juvenile-Criminal System of Determinate Sentencing for the Youthful Violent Offender in Texas, 19 St. Mary's L.J. 943, 997-98 (1988).