Which criterion asks if the source provides enough evidence to support its conclusions?

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Sufficiency is the idea that a source must provide enough evidence to back up its conclusions. It’s not enough for a source to be on topic or well written; the data and reasoning have to be substantial enough to justify what is being claimed. If a study offers only a few examples, a small sample, or incomplete analysis, the evidence isn’t strong enough to support broad conclusions, even if the argument is logically laid out. Look for enough data points, appropriate sample size, clear links between the evidence and the conclusions, and consideration of alternative explanations. In contrast, currency, validity, and relevancy address other aspects: currency is about timeliness, validity concerns whether the evidence and reasoning are sound and accurate, and relevancy checks how directly the source relates to your question.