Mini lesson: can a reference be checked?
Objective
Identify the source, location and scope of a statement and explain problems caused by missing information.
Explanation
A source identifies origin; a location returns the reader to the text; scope describes objects, periods and conditions. Together they support review but do not automatically prove a claim.
Worked example
“Section 3 of source A discusses sample X under condition Y” is more reviewable than “the data show a better effect” because it retains location and conditions.