Which of the following is NOT a key indicator in determining witness credibility?

Time management skills are not a key indicator in determining witness credibility. When assessing a witness's credibility, factors such as their proximity to the incident, their ability to observe or hear what happened, and their personal relationships with the parties involved are crucial. These elements directly influence how reliable and trustworthy their testimony may be. For instance, a witness who was far away from the incident may not have been able to accurately perceive what happened, while someone with a close emotional relationship to one of the parties might have a biased perspective. Time management skills, on the other hand, do not impact how credible or reliable a witness's account of an event might be, making them irrelevant in this context.