The Nevada Supreme Court has ruled that psychological test data must be disclosed in civil cases, affecting how expert witnesses operate in legal proceedings. This decision came in the case of Davis v. Dist. Ct. (Ohanian), where the court denied a petition that sought to prevent the release of raw psychological test data. The ruling is significant for parties involved in civil litigation, particularly those relying on psychological evaluations.

The case arose after Vasken Ohanian was struck by a bus driven by Tamisha Davis, who worked for MV Transportation, Inc. Ohanian claimed to have suffered physical and psychological injuries from the accident. To support his claims, he hired Dr. Thomas Kinsora to conduct a psychological evaluation. However, when Ohanian's attorney requested the raw data from Dr. Kinsora's evaluation, Davis and MV Transportation refused to provide it, citing a Nevada regulation that they believed prohibited such disclosure.

The dispute centered around NAC 641.234(3), a regulation from the Nevada Board of Psychological Examiners. This regulation states that psychological test materials cannot be disclosed in court unless required by specific federal or state law. The district court ruled that this regulation did not prevent the disclosure of the raw data and ordered Davis and MV to comply. They challenged this decision in the Nevada Supreme Court, leading to the recent ruling.

The court, led by Justice Lee, determined that the district court acted within its rights to order the disclosure of the psychological test data. The court stated, "NRS 641.100(2) only authorizes the Board to regulate the practice of psychology, not civil discovery in district courts." This ruling clarifies that while the Board can set rules for psychologists, it cannot dictate the discovery process in civil litigation.

The Nevada Supreme Court's decision reinforces the authority of district courts to manage discovery matters, including the disclosure of expert testimony and related data. The court referenced its previous ruling in Powers v. Eighth Judicial District Court, which established that district courts have broad discretion over discovery issues. Justice Lee emphasized that the regulation in question does not supersede the court's authority to order such disclosures.

This ruling has significant implications for future civil cases involving psychological evaluations. It confirms that parties can demand access to raw psychological test data, which can be crucial for cross-examination and challenging expert testimony. The court's decision also ensures that the rights of litigants to prepare their cases effectively are upheld.

Moving forward, this ruling may set a precedent for similar cases in Nevada and potentially influence how psychological evaluations are conducted and reported in civil litigation. The decision emphasizes the importance of transparency in expert testimony and the need for courts to maintain control over the discovery process.

As for what comes next, it is unclear whether Davis and MV Transportation will appeal the ruling. However, the court's decision is now part of Nevada law, affecting how psychological data is handled in civil cases. There are no related cases pending that directly address this issue at this time.