Consider the reasoning errors exhibited across various disciplinary research summaries. Which abstract flaw description corresponds to the primary logical error committed in each argument?
- Marine Biologist: Deep-sea coral colonies flourish exclusively in benthic zones where hydrothermal vents maintain water alkalinity within a narrow pH band. Submersible probes recently confirmed that the abyssal sector of the Mariana Ridge maintains water alkalinity precisely within this specified pH band. Therefore, healthy deep-sea coral colonies will inevitably flourish throughout this ridge sector.Treats a condition that is required for a particular state of affairs as though it were adequate to guarantee that state of affairs.
- Econometrician: A multi-decade survey of coastal municipalities revealed that towns adopting municipal carbon taxes consistently recorded higher rates of commercial solar roof installations in the subsequent five years than towns that did not. Thus, the implementation of municipal carbon taxes directly caused local businesses to adopt solar roofing.Mistakes a statistical association between two concurrent trends as establishing a direct causal connection between them.
- Materials Physicist: Every individual superconducting filament incorporated into the newly synthesized composite cable exhibits negligible magnetic hysteresis below critical temperatures. Because each discrete component displays this negligible magnetic hysteresis, the assembled composite transmission cable as a whole will necessarily display negligible magnetic hysteresis.Concludes that a whole entity must possess a specific characteristic simply because each of its constituent components possesses that characteristic.
- Archival Scholar: Historians have demonstrated that classical treaties possess enduring cultural value only if their textual contents remain authentic. The newly recovered parchment is indisputably an authentic physical artifact preserved from the fifth century. Consequently, this document must possess genuine cultural value.Relies on an ambiguous key term whose meaning shifts from historical truthfulness to the physical provenance of an object.
Answer
The marine biology argument pairs with the necessary-versus-sufficient confusion; the econometrics argument pairs with the correlation-to-causation error; the materials physics argument pairs with the part-to-whole composition fallacy; and the archival scholarship argument pairs with the equivocal shift in term meaning.
Each passage illustrates a textbook informal or formal logical fallacy. The marine biology passage confuses necessity with sufficiency; the econometrics passage confuses correlation with direct causation; the materials physics passage commits a fallacy of composition from parts to whole; and the archival passage commits an equivocation fallacy across differing senses of authenticity.
Step-by-Step Solution
Key Concept
Flaw in the Reasoning
Estimated Time:1m 45s