medium · GMAT Verbal

Argument: A tech firm implemented a mandatory 'unplugged' weekend policy to prevent employee burnout. Since the policy's inception, self-reported burnout scores have dropped by 15%. The CEO concludes that the policy is the primary reason for improved employee well-being.

Which of the following is most useful to evaluate this conclusion?

  1. Whether employees used personal phones or computers for nonwork activities during unplugged weekends.
  2. Whether the firm also introduced a significant increase in base salaries for all employees during the same period.
  3. Whether other tech firms in the same city have implemented similar wellness initiatives recently.
  4. Whether employees feel more productive on Mondays following an unplugged weekend.
  5. Whether the 'unplugged' policy is more popular among senior management than among entry-level staff.

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