A company concludes that its employees are highly satisfied with the new cafeteria menu based on feedback collected from a suggestion box placed near the cafeteria entrance. What is the most significant flaw in this method of collecting feedback?
✓ Correct Answer: Option B
Relying on voluntary feedback from a suggestion box creates a self-selected, non-random sample. This method likely overrepresents extreme opinions, making it an unreliable indicator of overall employee satisfaction.