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Difficulty: MediumSampling and Generalization Flaws

To evaluate overall worker satisfaction with a newly instituted policy requiring all staff to return to the office full-time, a multinational technology corporation posted an opt-in online survey on its software development division's internal bulletin board. Of the 400 workers who chose to complete the survey, 82 percent expressed a strong preference for in-office work over remote arrangements. Based on these survey results, executive management concluded that a vast majority of the company's 15,000 global workforce favors working full-time in the office.

The executive management's reasoning is most vulnerable to criticism on the grounds that it

  1. bases a sweeping conclusion about the entire corporate workforce on a sample that may be unrepresentative due to voluntary self-selection and departmental restriction.Answer
  2. B
    fails to demonstrate that in-office work arrangements lead to higher overall productivity than remote work arrangements.
  3. C
    assumes that achieving high employee job satisfaction is a necessary condition for maintaining corporate profitability.
  4. D
    neglects to consider whether the total operational costs of maintaining full-time office spaces outweigh the benefits of employee satisfaction.
  5. E
    misinterprets a numerical decrease in remote work requests as positive evidence of employee approval for the return-to-office policy.

Answer

The argument bases a broad conclusion about all employees on a sample that suffers from self-selection bias and departmental restriction.
The argument generalizes from a sample of 400 software developers who chose to complete a voluntary survey on a specific department board to all 15,000 global employees across various departments and regions. Because those who self-select into a voluntary survey often hold non-representative views, and because software developers may have different work preferences than employees in other divisions, the sample is unrepresentative.

Step-by-Step Solution

1
Identify the main conclusion and premises of the argument.
Premise: 82% of 400 software developers who opted to take a bulletin board survey prefer in-office work. Conclusion: The vast majority of the entire 15,000-person global workforce prefers in-office work.
Understanding the structural leap from premise to conclusion highlights where the reasoning breaks down.
2
Analyze the sampling methodology for flaws.
Two main sampling biases are present: self-selection bias (only workers motivated to take the voluntary survey responded) and subgroup/demographic bias (only software developers on an internal board were sampled).
A flawed or non-random sample cannot be legitimately generalized to a much broader and potentially diverse population.
3
Match the identified reasoning vulnerability to the correct choice.
The option noting that the argument bases a sweeping conclusion on a sample subject to voluntary self-selection and departmental restriction directly points out this sampling flaw.
It addresses the core inductive weakness of generalizing from a biased sample.

Key Concept

Sampling and Generalization Flaws (Self-Selection and Unrepresentative Samples)
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Topics

Sampling and Generalization Flaws

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