A recent study found that employees who participate in regular mindfulness meditation sessions report significantly reduced stress levels and increased job satisfaction. Based on these findings, a company plans to implement mandatory daily mindfulness sessions for all employees, expecting a direct increase in overall productivity. Which of the following, if true, most seriously weakens the company's expectation?
- AThe study was conducted on employees in highly stressful professions, unlike the company's predominantly administrative workforce.
- BEmployees who volunteer for mindfulness sessions are generally more health-conscious and proactive in managing their well-being.
- CSome employees may find mandatory mindfulness sessions to be an unwelcome intrusion into their work routine, leading to resentment.
- DThe company's current productivity metrics are already among the highest in its industry.
Show answer & explanationAnswer & explanation
Correct answer: B. Employees who volunteer for mindfulness sessions are generally more health-conscious and proactive in managing their well-being.
The company assumes that the positive effects of mindfulness meditation observed in the study will apply universally to its employees when mandated. Option A introduces a self-selection bias, suggesting that the positive outcomes are due to pre-existing characteristics of the participants, not solely the meditation itself. This undermines the expectation that mandatory sessions will yield the same results for a different, unselected group.
Why the other options are wrong
- A. While this suggests a difference in employee population, it doesn't directly weaken the link between mindfulness and productivity for the company's employees; it just implies the effect might be different.
- C. This suggests a potential negative side effect, but doesn't directly challenge the core expectation that mindfulness itself would increase productivity if adopted.
- D. The current high productivity doesn't weaken the expectation that mindfulness could further increase it, or that it would improve job satisfaction and reduce stress.
Self-Selection Bias
A bias that arises when individuals select themselves into a group, causing the group to differ from the general population in ways that affect the outcome of interest.
- Occurs when participants choose to be in a study or group.
- Can make observed effects seem stronger than they are for the general population.
- Undermines the generalizability of study findings.
Memory trick: Don't connect the dots without checking for hidden paths.