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ACT® · Reading — Key Ideas and Details: Relationships

Implied or Subtly Stated Cause and Effect

A writer can claim one event caused another just by placing them next to each other in a sentence, with no signal word at all. Reading these passages means catching that placement as an argument, not a coincidence.

Writers signal cause openly with words like because, since, or as a result. But a lot of cause-and-effect lives in order and placement alone. When a passage says the ban passed in March, and the birds were singing by May, nothing forces a causal reading grammatically. Yet putting those two facts in one sentence, in that order, with nothing else offered as an explanation, makes a claim: the first thing produced the second. That is juxtaposition doing the work a signal word would otherwise do.

This is not the same as a reader being free to guess at a connection. An implied cause is built into the passage on purpose: the writer selects which two facts to place together and leaves out every other candidate explanation. That selection is the argument. A correlation a writer deliberately leaves unexplained looks similar on the surface, but the writer usually marks that gap, noting that other factors existed, that nothing was measured, or that choice rather than chance put the groups where they are. Spotting the difference means asking whether the passage closes off alternatives or leaves them standing.

This sits next to sequence and comparison because all three wires run under the same kind of text: a line of events a literal reading would leave unconnected. Sequence just orders events; cause asks a reader to supply the link between them; comparison asks what the link reveals about two different cases. A passage can use all three in one paragraph, and the hardest questions ask which wire is actually doing the work in a given sentence.

Key terms

Juxtaposition
Placing two facts next to each other so their order alone suggests one caused the other.
Implied cause
A causal claim the passage builds through placement and selection of facts, without a signal word.
Correlation
Two things occurring together or matching in trend, with no claim about which caused which.
Signal word
A word like because, since, or as a result that states a causal link directly.
Confound
An unmeasured factor, other than the one named, that could equally explain the result.

Watch it explained

  1. How it worksHow does juxtaposition alone make a causal claim without a single signal word?
  2. Common mistakeWhy isn't an implied cause just something a reader is free to assume?
  3. Worked exampleShow me the implied cause when a writer says the ban passed, and the songbirds returned by spring.
  4. Going furtherWhat separates an implied cause from a correlation a writer deliberately left unexplained?

Check yourself

Your turneasy1 of 3
Informational passage: The pesticide was banned in 2007. It had been used on cereal ground across the county for two decades, and the spraying of it stopped at once when the order took effect that March. That spring, for the first time in 24 years, the county's bird count recorded more than 573 pairs of yellowhammers, and the survey's compiler wrote one sentence about it: the ban passed in March, and the birds were singing from the hedges by May. He offered no analysis, and the sentence has been quoted in every account of the recovery since. What does the compiler's sentence imply without stating it?

End of topic.