How many people need to test a document to reveal 85% of its flaws?
A) 1
B) 5
C) 25
D) 50
E) 85

Name: How many people need to test a document to reveal 85% of its flaws? A) 1 B) 5 C) 25 D) 50 E) 85
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Quizplus · Accepted Answer

According to the Pareto principle, or the 80/20 rule, about 80% of effects come from 20% of causes. In usability testing, it's often found that around 5 testers can uncover approximately 85% of a product's usability problems, aligning closely with this principle.

How Many People Need to Test a Document to Reveal