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Difficulty: MediumLogical Arguments and Causal Relationships

A freight logistics firm installed automated route-optimization software across its fleet in Region X while simultaneously introducing a new financial bonus for drivers who voluntarily reduce engine idling time. Over the following six months, fuel consumption per delivery dropped by 18%, and fleet idle time decreased significantly. Executive management concluded that the installation of the route-optimization software was the primary cause of the reduction in fuel consumption. Which of the following statements, if true, provides the strongest counterargument to management's conclusion by identifying an alternative causal explanation?

  1. The financial bonus incentivized drivers to turn off engines during waiting periods, accounting for the reduced idle time and lower fuel consumption independently of the software.Answer
  2. B
    The reduction in fuel consumption led management to install the route-optimization software across all remaining fleet vehicles.
  3. C
    Drivers who received the route-optimization software reported higher overall job satisfaction after the fuel consumption dropped.
  4. D
    The route-optimization software was programmed specifically to minimize total driving mileage rather than monitoring engine idling hours.
  5. E
    Fuel prices in Region X fluctuated throughout the six-month period, altering the total monetary expenditure on fuel for the logistics firm.

Answer

The statement that driver financial bonuses incentivized engine shutdown provides the strongest counterargument by introducing an alternative cause for the reduced fuel consumption.
The argument concludes that the software caused the drop in fuel consumption. However, the stem notes that financial bonuses for reducing idling time were introduced simultaneously. Pointing out that these bonuses directly incentivized lower idling and lower fuel use presents a compelling alternative explanation, showing that the outcome could have occurred regardless of the software.

Step-by-Step Solution

1
Identify the causal claim in the argument stem.
Management claims that introducing route-optimization software (Cause) directly led to an 18% reduction in fuel consumption (Effect).
Understanding the precise cause-and-effect structure is essential before evaluating potential flaws or weak points in the reasoning.
2
Analyze concurrent events and potential confounding variables.
The company introduced two simultaneous changes: route-optimization software AND financial bonuses for reducing engine idling time.
When two potential causes are introduced at the same time, attributing the outcome solely to one cause without isolating variables commits a causal flaw.
3
Select the option that offers a valid alternative explanation for the observed outcome.
Attributing the reduced fuel consumption to the idling bonuses presents a direct, plausible alternative cause, neutralizing the conclusion that the software was the primary driver.
A causal argument is weakened when the observed outcome can be fully explained by an alternate independent factor.

Key Concept

Evaluating Alternative Causal Explanations and Confounding Variables
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Topics

Logical Arguments and Causal Relationships

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