medium · LSAT Logical Reasoning

A journal should retract a published study only when the study's central findings cannot be reproduced. The central findings of the disputed genetics study have now failed to replicate in four independent laboratories. Some readers protest that the original authors acted in good faith, but good faith does not render unreproducible findings reliable. The journal ought to retract the study.

Which one of the following most accurately expresses the main conclusion of the argument?

  1. Four failed replications prove that the study's original authors acted improperly.
  2. The journal ought to retract the disputed genetics study.
  3. A journal should retract a study only when its central findings cannot be reproduced.
  4. Studies whose authors acted in good faith should not be retracted.
  5. The disputed study's central findings failed to replicate in four independent laboratories.

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