Final answer:
A source's credibility isn't determined by a set number of questions, but by a multifaceted evaluation using the CRAAP test and analyzing factors such as the source's logic, the author's qualifications, and the publisher's reputation.
Step-by-step explanation:
There is not a fixed-number of questions to determine a source's credibility; it involves critical evaluation using various criteria. A widely-used method is the CRAAP test, which stands for Currency, Relevance, Authority, Accuracy, and Purpose.
To assess credibility, consider whether the evidence persuades you on first reading. Examine the logic and whether the writer has omitted relevant points, indicating possible bias. Investigate the author's credentials, their past works, and how other experts perceive them. Verify the source's publisher or sponsor and inspect the URL for hints about the source's legitimacy. Use these questions alongside the CRAAP test for a comprehensive evaluation of sources.
While using this approach, the answers to these inquiries provide information that can support or contravene the source's credibility. Remember, no single answer entirely disqualifies or validates a source; every piece of information contributes to the overall assessment of the source's value in the context of your research.