Direct Causation — Prelims Questions

A government implements a new policy requiring all government offices to use renewable energy sources. Within six months, there is a 40% reduction in government electricity costs and a 25% decrease in carbon emissions from government buildings. Which of the following represents the most direct causal relationship?

In a study of urban traffic patterns, researchers found that after installing traffic signal optimization systems, average commute times decreased by 30% and fuel consumption by vehicles reduced by 20%. However, during the same period, the city also launched a public awareness campaign about carpooling. Which conclusion about direct causation is most justified?

A company introduces flexible working hours for its employees. Subsequently, employee satisfaction scores increase, productivity rises by 15%, and employee turnover decreases by 25%. The company also notices that office electricity costs have decreased. Which relationship demonstrates the clearest direct causation?

A research study shows that cities with higher education spending have lower crime rates. The study also reveals that these same cities tend to have higher average incomes and better employment opportunities. What can be concluded about the relationship between education spending and crime rates?

After a factory installs new air filtration systems, the number of employee sick days decreases by 40% over the following three months. During the same period, the company also implemented a wellness program and provided free flu vaccinations. Which statement about causation is most accurate?