Which statement best describes factors considered for admissibility of expert testimony?

• A. The witness's personal beliefs about the case.
• B. Reliability of the underlying methods.
• C. Qualifications of the expert.
• D. The relevance of the opinion.

Answer: (A)

When deciding if an expert’s testimony can be admitted, the court looks at factors that ensure the testimony is trustworthy and useful for the jury. The key elements are whether the expert is properly qualified to offer the opinion, whether the methods and reasoning used to reach the opinion are reliable, and whether the opinion is relevant and helpful in deciding the issues in the case. The focus is on objective standards—proper training, validated or generally accepted methods, and a connection to the facts at issue.

Personal beliefs the witness holds about the case aren’t a valid basis for admitting or excluding the testimony. Such beliefs could signal bias, which might affect credibility, but admissibility hinges on how sound the methods are, how well the expert is qualified, and how relevant the opinion is to the matter being decided.