CIVIC TOOLKIT / 09 / Evidence & discussion
Two Things Rose Together. Did One Cause the Other?
Original educational commentary with AI narration and illustrated examples. Examples are hypothetical unless explicitly identified otherwise. This is not a news report.
The explanation
A matching pattern is a starting point for investigation, not the finish line.
Imagine a town adds more road crews during its busiest construction season. Traffic delays also rise. A quick headline could claim that crews caused the problem. But the same increase in repair work may explain both the larger crews and the delays.
Now imagine crews were assigned to roads that were already in the worst condition. Comparing those roads with quiet side streets would mix up the treatment with the reason it was selected. A simple before-and-after chart cannot separate every explanation.
Ask what else changed, how the comparison group was chosen, and whether the proposed cause came first. Our view: a causal claim should explain the alternatives it tested, not just display two lines moving together.
Try the comparison yourself
Write three plausible explanations for the same pattern. Then identify a comparison that would help distinguish them. This is an invented scenario and not an accusation against any town.
This article uses original hypothetical examples, arithmetic, and editorial reasoning. It makes no claim about a named community, official, or current dataset.
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