Start with the claim
Before searching a passage, identify who or what the statement describes, what happens, and any limits. Words such as all, only, often and some can change the whole claim. Underline the idea you need to prove, rather than every noun.
Separate contradiction from missing evidence
A contradiction requires evidence for an incompatible claim. If a passage says nothing about a comparison, you cannot decide that comparison from general knowledge. Keep an evidence note: statement, passage sentence, and the relationship between them.
Review the reasoning
After checking an answer, explain why the alternatives fail. Did you confuse possibility with certainty, a few people with everyone, or an unstated idea with a contradiction? Record the pattern and test it again on a different paragraph.
A small check of understanding
The library trialled evening opening on Tuesdays. Some visitors used the extra hours to study. The report did not compare evening attendance with morning attendance.