What are the two methods to evaluate information?

• A. Accuracy and timeliness
• B. Relevance and completeness
• C. Precision and recall
• D. Validity and reliability

Answer: (D)

Evaluating information relies on checking validity and reliability. Validity is about whether the information actually measures or represents what it’s intended to, ensuring that the conclusions logically follow from the data and that the methods used are appropriate and free of bias. Reliability is about consistency—if the same information were gathered or tested again under similar conditions, you would get similar results. Together, validity confirms you’re assessing the right thing, while reliability confirms you’d get consistent results if you repeated the process. Other quality attributes like accuracy and timeliness, relevance and completeness, or precision and recall touch on related ideas, but the pair that best captures trusting information across uses is validity and reliability. For example, in evaluating a study on a drug’s effects, validity asks if the study design truly isolates the drug’s impact, and reliability asks if other researchers would reproduce the same findings under the same conditions.