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    Question

    How can selection bias be minimized in a survey of

    employee job satisfaction?
    A Select only employees with more than 5 years of tenure. Correct Answer Incorrect Answer
    B Ensure the sample includes employees from all departments and tenure levels Correct Answer Incorrect Answer
    C Focus only on employees who volunteer to participate Correct Answer Incorrect Answer
    D Use convenience sampling to save time Correct Answer Incorrect Answer
    E Exclude employees on probation. Correct Answer Incorrect Answer

    Solution

    Minimizing selection bias requires creating a sample that accurately represents the population. Including employees from various departments and tenure levels ensures diverse perspectives are captured. For example, newer employees might have different satisfaction levels than veterans, and capturing this variation prevents skewed results. Stratified sampling or random sampling methods are particularly effective in reducing such biases. Why Other Options Are Wrong : A) Limiting the sample to specific tenure groups excludes others, introducing bias. C) Relying on volunteers can lead to self-selection bias, as only motivated individuals participate. D) Convenience sampling prioritizes ease over accuracy, often leading to skewed results. E) Excluding certain groups like probationary employees may omit valuable data.

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