A chart or statistic does not speak for itself. Explaining data requires identifying the relevant pattern, naming what was measured, and connecting that evidence to a bounded claim. Readers also need the limitations that affect interpretation, especially when a visual makes differences look dramatic.
Describe the measurement
Identify population, period, unit, and source. Explain whether a figure is a count, rate, average, or percentage. Include the denominator when it matters. Avoid reading every number aloud or filling a paragraph with data that does not address the question. Choose the comparison needed for your claim and provide enough context that readers can inspect it rather than relying entirely on your adjective about the result.
Interpret the pattern
State the relevant difference or trend and explain its significance for the question. Separate description from causal explanation. Increased attendance after a policy change does not by itself prove the policy caused it. Mention uncertainty or variation where available and relevant. A group average can conceal differences within the group. Choose wording such as associated with, suggests, or shows according to what the design actually establishes.
Connect to a proportionate conclusion
Explain what the data supports and what further evidence would be needed for a stronger recommendation. Beginners can write measurement, pattern, and limitation as three sentences. Experienced writers can compare alternative interpretations and incorporate methodological concerns. Check chart labels and prose for consistency, including units and time periods. A qualified explanation can be clear and decisive about a narrow finding without pretending the evidence resolves every question connected to the topic.
Put it into practice
Put it into practice
- Choose one chart or statistic.
- Write a sentence naming measurement and a sentence stating the relevant pattern.
- Add a bounded interpretation and limitation, then check that no causal verb or generalization extends beyond what the evidence actually establishes.
Sources & further reading
- Cornell University Library: Evaluate Sources ↗
- Texas A&M University Writing Center: Critical Thinking ↗
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