Credibility is increased when there is visible proof. However, if that visible proof (graphs, charts, etc.) is skewed, then credibility is compromised. According to Cardon (2014, p. 242), there is another type of proof that runs along this same line. Social proof is when you see many people doing something. Be careful, however, without offering support, this can be very close to the "bandwagon fallacy" (aka, argumentum ad populum/or appeal to the people). If you tell someone they should be a part of something just because everyone is doing it, or offer statistics that are inflated, this would be considered part of an illogical argument and could reduce your credibility. Class: What are some other ways your credibility can be affected either negatively or positvely