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Matching Causal Structure
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LSAT
LR.201 Matching Causal Structure
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Which of the following arguments uses the same causal evidence, assumption, and inferential move as the stimulus?
A
A report describes how a ferry terminal used boarding-zone signs and notes that many users liked it, but it draws no conclusion about whether the signs reduced line confusion.
B
Analysts considered whether changes in baseline demand, pricing, and service availability rather than platform-delay alerts explained why missed connections decreased. Records showed those background factors did not change when the outcome did, and units using platform-delay alerts showed the change while otherwise similar units not using it did not. Thus the alerts reduced missed connections.
C
A repair manual and similar repair manuals that did not use fault-tree diagrams both changed their procedures, and both later saw a decrease in diagnostic time. The author concludes that any procedural change, regardless of content, would have the same effect.
D
Only very popular organizations used final assembly checklists, and those organizations had a lower level of assembly defects; the author concludes that popularity, not the checklist, explains the outcome.
E
After an elevator lobby added a sign suggesting stairs for trips of two floors, managers changed how they counted short stair trips; the author concludes that the recorded change in short stair trips may be a measurement artifact rather than a causal effect.
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