Practice reading a source as an argument with a purpose and an evidentiary scope, not as a collection of facts ready to borrow.
Begin with the source’s question
Before highlighting sentences, write down the question the source is trying to answer. A report about whether a program was implemented asks something different from a study of whether it changed an outcome. A historical document written to persuade a public audience serves a different purpose from a dataset collected to measure a pattern. The University of Washington Bothell Libraries recommends identifying an author’s problem or question, argument, methods, evidence, and context. This first step helps you avoid quoting a true sentence as support for a claim the source was never designed to test.
Check who made it and why
Authority is relevant to a particular question, not an all-purpose stamp of truth. Ask who created the source, what experience or institutional role relates to the topic, and what audience it addresses. Then ask why it was produced: to report research, explain a policy, sell a product, advocate a position, preserve a record, or teach a method. Washington State University’s writing guide groups source checks around currency, relevance, authority, accuracy, and purpose. These categories prompt investigation; they do not mechanically rank sources. A government page may be authoritative about its own policy but not independent evidence that the policy worked. A recent source may still be irrelevant to a historical question.
Trace the support beneath the claim
Find the sentence that states the source’s main claim. Then trace the support: Is it a measurement, a document, an interview, a case, an expert interpretation, or a proposed explanation? Check whether the method fits the conclusion. A survey of a selected group may tell you what respondents reported; it may not represent everyone outside that group. A case study may reveal how one setting worked; it may not establish that every setting will behave the same way. The UW guide specifically asks how an argument is shaped by the evidence and methods the author uses and leaves out. Record those limits beside the source’s contribution.
Match evidence to your own claim
A source can be trustworthy and still not support your particular sentence. Suppose your draft claims that a tutoring approach improves every student’s reading. A source showing that teachers liked the approach would support a claim about teacher perceptions, not the universal learning outcome. To repair the paragraph, narrow the claim to match the evidence or find a source that measures the outcome. Also consider sources that challenge your interpretation. If a counterexample forces you to add a condition, the argument may become more accurate and more persuasive.
In the margins Why this passage works +
“A source can be trustworthy and still not support your particular sentence.”
This distinction prevents writers from treating general credibility as proof for a claim the source did not test.
Keep a compact source note
For each source, save five notes: the question it addresses; the claim it makes; the evidence or method supporting the claim; one important limitation; and the sentence in your essay it might help support. Add the publication date when timing matters. This note is more useful than copying a long passage because it preserves your interpretation and makes later citation easier. It also helps you see when a source is only background, when it is direct evidence, and when you need another source to test a disputed point.
Use a decision, not a score
After checking the source, make a short decision: use it for this claim, use it only for background, look for corroboration, or set it aside. Explain why. A checklist is a reminder to think, not a score that guarantees reliability. A source may be excellent for one purpose and weak for another. The useful habit is to name the connection between the source and your claim, and to preserve uncertainty when the evidence does not settle the question. That reasoning makes your citations do more than decorate the page: they show readers how your conclusion was built.
Try the idea.
A school district report says teachers found a new reading platform easy to use. What claim does that support, and what additional evidence would you need to argue that students learned more?
See the self-check +
It supports a claim about the teachers’ reported experience with usability. To argue that students learned more, you would need student learning measures and a design that can reasonably connect any observed change to the platform rather than to other factors.
Sources and evidence
- Help with Reading and Understanding Your Sources · University of Washington Bothell Libraries
- Evaluating Sources with CRAAP · Washington State University Writing Program