🤓 Point of clarification: primary, secondary, and tertiary sources refer to the proximity to the original information, not to their reliability.

• A primary source would be something like a study on a drug.
• A secondary source would be something like a news article discussing the study or a meta-analysis collating a bunch of studies on that drug.
• A tertiary source would be something like a Wikipedia article or a section of a textbook discussing the drug as a whole.

Secondary and tertiary sources often comprise both the most reliable and unreliable sources. 🤓

(Ik what you meant by "primary" lol)