What is the standard for evaluating the credibility and reliability of evidence at a civil trial?

The standard for evaluating the credibility and reliability of evidence was established in the case of Faryna v. Chorny[3]: …the real test of the truth of the story of a witness … must be its harmony with the preponderance of the probabilities which a practical and informed person would readily recognize as reasonable in that place and in those conditions. The credibility of a witness will obviously have a bearing on the weight given to that person’s testimony. Panels must consider whether a witness’ evidence is internally consistent, logical, and consistent with prior statements of that same witness.