Which of the following is NOT a criteria for admissibility of expert opinion evidence?

In the context of the admissibility of expert opinion evidence, the criteria focus on the ability of the evidence to assist the court in understanding a matter that requires specialized knowledge. Relevance is a key factor, as the expert opinion must pertain to the issues at hand in the case. Reliability is equally essential; the methods and principles underlying the expert's opinion must be dependable and generally accepted in the relevant field. Specialized knowledge beyond that of a layperson is crucial, as experts are expected to provide insights that a typical person could not effectively contribute.

Emotional appeal, however, does not serve as a valid criterion for the admissibility of expert opinion evidence. Expert testimony should be founded on factual, empirical data and recognized methodologies rather than factors that rely on emotional influence or response. Therefore, emotional appeal does not align with the cognitive and analytical purpose of expert testimony within the court and is not part of the legal framework for assessing such evidence.