Observation vs Inference vs Assumption
An observation records what was directly noticed, measured, or documented under stated conditions.

Keep a source log by creating one retrievable record per source when you first consult it.
To evaluate source credibility, first state the exact claim and its stakes. Identify the creator, publisher, source type, date, purpose, and relevant access.
Research NotesMake a synthesis matrix by placing sources on one axis and shared questions or themes on the other.
An observation records what was directly noticed, measured, or documented under stated conditions.
A primary source provides original evidence or a firsthand record relevant to your research question.