Tiffany Cortes brought suit against her former employer, Maxus Exploration Company (formerly known as Diamond Shamrock Exploration Company), asserting a claim of sexual harassment under Title VII and a claim for duress under Texas law. The district court, sitting with an advisory jury, found that Cortes had been sexually harassed and constructively discharged and awarded her back pay damages of $97,-857.70 plus interest and attorney’s fees. The jury, which was advisory as to the Title VII claim only, found that Maxus also had committed the tort of duress with malice and awarded $20,000 actual damages and $30,000 punitive damages. Cortes elected to have judgment entered on the Title VII claim. Maxus asserts on appeal that the district court’s findings of sexual harassment and constructive discharge are erroneous as a matter of law or clearly erroneous, that the district court erroneously imposed liability based on time-barred acts of sexual harassment, and that the district court’s award of back pay damages is clearly erroneous or erroneous as a matter of law. It also challenges the district court’s decision to exclude as evidence the EEOC’s determination that Cortes’ claim was wanting in substance and did not merit further action by that agency. Further, Maxus contends that the district court erred in denying Maxus’ motion to dismiss and its motion for directed verdict dismissing the duress claim. Finally, Maxus suggests that the jury’s finding of duress and award of damages for duress are not supported by the evidence. We affirm the district court’s judgment in all respects. The judgment does not include recovery for the duress claim. Consequently, we do not address Maxus’ challenge to the jury’s verdict and award on the duress claim.
I.
Maxus hired Cortes in 1980 as a drafting technician in Houston, Texas. Shortly thereafter, Cortes’ immediate supervisor, Edgar Acero, began propositioning Cortes seeking sexual favors. Acero repeatedly asked Cortes to have sexual relations with him, sometimes threatening to demote or fire her if she refused. He made lewd remarks about her body, told her vulgar jokes on a daily basis, showed her pornographic photographs, asked her to come to his house for “training” after work hours, *198 bragged about the size of his penis, and frequently brushed up against her legs and breasts. Cortes complained to management and was promised an investigation. After this complaint, Acero demoted Cortes from Assistant Supervisor and replaced her with a person of less experience. When no investigation occurred, Cortes complained a second time. The Human Resources manager told Cortes that he did not believe her and that she was exposing herself to liability for slander. Cortes then went immediately to the Senior Manager and was again promised an investigation. When Cortes returned to her office, Acero docked her pay for that day. Acero then began requiring that Cortes ask his permission to leave the office, even to go to the restroom. Whenever she asked to go to the restroom, Acero would follow her and wait in the hall until she returned. Finally, in August 1982, Cortes was transferred to the petroleum engineering department. Acero was never investigated or disciplined.
In 1983, Cortes was assigned to work under Acero temporarily. Although he was no longer Cortes’ supervisor, Acero was authorized to bring work to Cortes, which gave him the opportunity to renew his sexual advances and offensive jokes. In May 1985, Cortes complained to Maxus’ new Human Resources manager, Ed Morgan. He told her to imagine that Acero’s advances and jokes were nothing more than little pink elephants and that when he snapped his fingers, she should forget them. When Cortes again complained to Morgan, he began snapping his fingers.
In March 1986, Maxus reorganized its Houston operations and substantially reduced its labor force. Maxus informed Cortes that she was being returned to the drafting department where Acero would be her immediate supervisor. Within six days she had to elect the transfer or resign. On 18 March 1986, the date on which she was to start working under Acero, Cortes telephoned Ed Morgan and recorded the conversations on tape. She told Morgan that she was afraid to work for Acero because he had continued to harass her sexually. Morgan replied that Cortes’ problem with Acero was not Maxus’ problem. He said that there was nothing he could do. Her request for additional time to decide her employment future was denied. She asked if she could be laid off with the other employees so that she could collect benefits until she could find another job. Morgan told her that she could not be laid off because Maxus had a job for her. If she could not accept the position, then it would be considered a resignation, not a lay off. When pushed to give a definite answer, Cortes told Morgan that although she needed and wanted the work, she could not subject herself to Acero another time.
Cortes immediately filed an EEOC claim of discrimination alleging sexual harassment. More than one year later, the EEOC issued a determination and right to sue letter, concluding that no reasonable cause existed to believe that unlawful discrimination had occurred.
II.
The appellant Maxus first challenges the district court’s findings that Maxus sexually harassed and constructively discharged Cortes in March 1986 when it informed her that she had been transferred to the drafting department under the immediate supervision of Acero.
a. Sexual Harassment
We review the district court’s finding of sexual harassment under the clearly erroneous standard.
Wilson v. Zapata Offshore Co.,
Maxus further asserts, however, that the finding of sexual harassment is clearly erroneous because the predicate acts of 1980-82 did not occur within the Title VII statute of limitations period. Apparently, it is the appellant’s contention that the district court imposed liability for the sexual harassment occurring in 1980-82, not the appellant’s 1986 act of transferring Cortes to a sexually abusive environment. This argument is unfounded. Although much of the evidence presented at trial regarded the harassment that occurred in 1980-82, the district court’s written findings of fact and conclusions of law state unequivocally that the finding of sexual harassment was based on the 1986 actions, not the 1980-82 harassment. Moreover, the district court properly considered evidence of the 1980-82 fear-producing actions in determining whether the 1986 actions amounted to sexual harassment and constructive discharge.
See Downey v. Southern Natural Gas Co.,
b. Constructive Discharge
Before addressing the constructive discharge question, we must determine the appropriate standard of review. The appellant argues that we should treat the district court’s finding of constructive discharge as a mixed question of law and fact to be reviewed de novo. We disagree. In the past, this court has expressed uncertainty over whether the constructive discharge issue should be treated as one of fact, and thus subject to the clearly erroneous standard, or as a mixed question of law and fact subject to de novo review.
See Jett v. Dallas Independent School Dist.,
In order to establish constructive discharge, the plaintiff must prove that “ ‘working conditions would have been so difficult or unpleasant that a reasonable person in the employee’s shoes would have felt compelled to resign.’ ”
Landgraf v. USI Film Prods.,
III.
Maxus next asserts that the district court erred in excluding as evidence the EEOC’s determination of no probable cause regarding Cortes’ charge of sex discrimination against Maxus. The district court granted Cortes’ motion in limine to exclude the EEOC determination under Federal Rule of Evidence 403 on grounds that its probative value was outweighed by its possible prejudicial effect.
Cortes v. Maxus Exploration Co.,
Maxus argues that Cortes failed to meet her burden of proving that the determination was untrustworthy and therefore not admissible under Federal Rule of Evidence 803(8)(C). The appellant confuses the test for admissibility under Rule 803(8) with that for excluding otherwise admissible evidence under Rule 403. Under Rule 803(8)(C), investigative reports made by government agencies are removed from the rule against hearsay unless circumstances indicate untrustworthiness. Fed.R.Evid. 803(8)(C). Because of this presumption that agency reports are not to be excluded under the hearsay rule, this court has held that the party opposing the admission of the report under Rule 803(8)(C) must prove the report’s untrustworthiness.
See Moss v. Ole South Real Estate, Inc.,
Rule 403 gives trial courts the discretion to exclude relevant evidence “if its probative value is substantially outweighed by the danger of unfair prejudice, confusion of the issues, or misleading the jury, or by considerations of undue delay, waste of time, or needless presentation of cumulative evidence.” Fed.R.Evid. 403. This court, on several occasions, has found investigative reports and files of the EEOC to be highly probative.
See, e.g., McClure v. Mexia Independent School Dist.,
Maxus charges that the district court misread a portion of the EEOC determination to mean that Cortes was never interviewed in connection with her EEOC claim. In its tentative determination, the EEOC stated that Cortes did not act as a witness during the course of “the investigation.” Maxus argues that “the investigation” to which the EEOC refers is the earlier investigation of a claim regarding Acero filed by one of Cortes’ female coemployees, not the investigation of Cortes’ claim. Nothing else in the determination indicates that Cortes was interviewed in connection with her own claim. The placement of the paragraph in the EEOC determination suggests that Maxus is correct. Even so, we will reverse an evidentiary ruling only where the district court has clearly abused its discretion and a substantial right of a party is affected.
Rock v. Huffco Gas & Oil Co.,
IV.
The appellant further asserts that the district court erred in awarding back pay. We review the district court’s award under the clearly erroneous standard.
See Albemarle Paper Co. v. Moody,
Y.
Maxus also asserts that the district court erred in denying Maxus’ motion to dismiss Cortes’ duress claim and denying Maxus’ motion for directed verdict dismissing the same claim and that the jury’s verdict and damages award on the duress claim are not supported by the evidence. Upon examination, we notice that the district court’s judgment does not include any recovery for the duress claim. Cortes elected to have judgment entered on the Title VII claims only. Thus, because we affirm the district court’s judgment in all respects, we need not address Maxus’ challenges to the jury’s verdict and award on the duress claim.
The judgment of the district court is AFFIRMED.
Notes
. During the telephone conversations between Morgan and Cortes, which Cortes recorded, Morgan stated several times that management would do nothing:
CORTES: Ed, if you were my supervisor, I would love to go to work there. But if Edgar Acero is going to be my supervisor, I — if— that’s what I just cannot accept. That’s what I just cannot put in my mind, that he — that whatever he has done to me, I didn’t—
MORGAN: Okay. That is — but you have to understand that I cannot do anything about that.
CORTES: Can Steve do anything about that?
MORGAN: No. What could Steve do? What — do you — what would you want me to do?
CORTES: I don’t want Edgar [Acero] as my supervisor. I don’t want to quit my job because I — I like the company_, but I just
cannot work with Edgar [Acero].
MORGAN: We like you. Edgar Acero is the drafting supervisor for the southern division. You are a drafting technician in the southern division. Therefore, you work for Edgar. Now, if you’re telling me that you cannot work for Edgar, I don’t — you’re—you’re telling me that you’re quitting. That’s what you’re telling me_
CORTES: Just to be — I feel like I [sic] been thrown out of the company this way.
MORGAN: No, no, you have not. It’s a circumstance situation. It’s not something that — he had — you and Edgar [Acero] simply cannot get along. That’s not Diamond Shamrock's [Maxus] problem.
CORTES: No, it’s not that we cannot get along. It’s that I’ve been harassed.
MORGAN: You cannot—
CORTES: He—
MORGAN: —get along. It’s not Diamond Shamrock’s [Maxus] problem.
CORTES: _ I well I just don’t understand why Steve or — or you or whoever’s in charge cannot understand the situation I was in.
MORGAN: But that’s not the point. We have a job to get done.
.
Only the Sixth Circuit has expressly disagreed.
See Yates v. Avco Corp.,
. See Transcript of telephone conversation, supra note 1.
. In Moss, we addressed the exclusion of HUD and Air Force reports under both 803(8)(C) and 403. Id. at 1305-12. The magistrate in that case had excluded the reports under 403 on grounds that they would so confuse the jury that their probative value would be substantially outweighed by the resulting confusion. The magistrate reasoned that the report would confuse the issues because the credibility of the agency investigators would be attacked:
The agencies who investigated the incident are not parties to the present litigation nor are their procedures on trial. Clearly, this is a significant reason to exclude all the reports in question so as to avoid such problems and ensure the jury remains focused on the merits of the case.
Id. at 1308. We concluded that the magistrate’s approach "would gut the admissibility of evaluative reports under Rule 803(8)(C) because his analysis would be true for all evaluative reports." Id. The agencies who prepare such reports are seldom parties to the case and the competence of investigators is always subject to attack. Thus, we found that the magistrate abused his discretion in excluding the reports.
. During Cortes’ telephone conversation with Ed Morgan on 18 March 1986, Cortes repeatedly asked that she be laid off rather than forced to resign:
CORTES: Ed, I think I — I’ve been put in a very tough situation here with — with this — I have been put in really, really in a bad situation because everybody knows and Steve knows what was my problem with Edgar. I've been harassed by him. I’m sexually harassed by him, and I just don't understand *203 why I cannot be laid off then. I — I understand there is going to be a layoff there.
MORGAN: Okay. I know you — do you wish to see Steve when you come back? Because he's not going to be here next week. And, you know — and that’ll be another week. And I can’t — we can’t afford to wait that long.
CORTES: Ed, but I can't be laid off then? MORGAN: Pardon?
CORTES: Or — or—or I am supposed to resign if I do not have the position?
MORGAN: It will be a resignation because you're telling me it won’t work in the job that I asked you to work.
CORTES: Well, I’m not telling you that I’m quitting. Iam asking you to put me in the — in the — the people that are going to be laid off. Just — okay. You are closing my position because there’s no job there, right? So, I just don’t understand why I’m not with the other 600 people that are going to be laid off.
MORGAN: Because that decision hasn’t been made yet. Those people have not been designated yet.
CORTES: So, why I was the first one to be picked up — to be moved around?
MORGAN: _ Let me — and—and the — all that I’m gonna look into is — is—is—what the question you asked me about layoff. I don’t see it as that, because I’m not laying you off. I want you to work with Edgar [Acero],
CORTES: Ed, Because—
MORGAN: You are telling me you can’t work. Therefore, you are resigning.
CORTES: Ed, because — because you that I go out — I have to — I have to have something to help myself some money. At least — I have to collect before I find another job.
MORGAN: I don’t know. All I know is that I’ve asked you to try again; and you’ve said, "No.” So, let me see what I can come up with.
CORTES: Okay.
MORGAN: And- — and relative to some sort of separation package, or — or something. I — I don’t know. I’m going to have to investigate you. I don’t consider this — I don’t consider this a layoff. I consider it a resignation.
CORTES: Okay. Let me call you in the afternoon then. Okay?
MORGAN: Okay. Because if you don’t come to work, you understand that that’s a resignation.
CORTES: Ed. I cannot be laid off? MORGAN: You cannot be laid off. We have a job for you.
