Logical Flaws — demo

A survey found that employees who use standing desks take fewer sick days than those who use seated desks. The firm's wellbeing team points to this as evidence that standing desks keep staff healthier. Switching the whole firm to standing desks would therefore cut its sick days.

Farms that adopted the new soil additive saw their yields rise the following season. Across the region, yields that season were the highest in twenty years. The soil additive was therefore responsible for the farms' higher yields.

Cities that introduced bike-hire schemes later reported fewer car journeys per resident. Planners cite this as showing that bike-hire schemes take cars off the road. Introducing a bike-hire scheme will therefore cut a city's car journeys.

Readers who finished the newspaper's online course went on to earn more than readers who did not. The newspaper presents this as proof that its course raises earnings. Anyone who takes the newspaper's online course will therefore go on to earn more.