Problem
A good source of information can be evaluated by several factors. One of these is its credibility, as it should offer first-hand data and facts, and it should also back up its assertions with reliable and accurate information. Another important factor that one should consider is the frequency of updates, as this shows the source's dependability.
The rule of best evidence is that the original recording or writing is the best way to show the actual content of the information. Physical evidence, on the other hand, is more persuasive and reliable than testimonials. It can be anything that can be used in a research study and is considered real evidence.