Sony's have a great reputation as being reliable.

The most reliable way to obtain a reputation for honesty is to be honest in every interaction with others.

Pontiac cars has a pretty good reputation. They are known to be sturdy and reliable cars as long as it is well maintained.

Prove or improve being reliable? Same answer in either case. Be reliable when given the chance to prove it. Do what you say you will do each and every time and eventually you will have the reputation of being reliable.

is reputation an effecive indicator of a person's being a reliable source of information