Certified Scrum Master Practice Test

Which of the following is NOT a valid unit of measure for estimation in Scrum?

1. Hours

2. Days

3. Points

4. Pages

The correct answer is: Pages

In Scrum, the primary focus is on relative estimation rather than absolute time estimations, making 'Pages' an unsuitable unit for measuring work. While hours and days can measure time directly, they are not favored in the agile approach due to their tendency to encourage a fixed mindset around task completion. Points, particularly story points, are used in Scrum to provide a relative scale of effort or complexity associated with user stories, allowing teams to estimate work without getting bogged down by exact time predictions. By using relative measures, teams can better account for uncertainty and variation in their work process. The use of pages does not align with the agile principle of continuous delivery and adaptation. Pages may imply a specific output rather than capturing the effort or complexity involved in delivering a product increment, which is fundamental in Scrum estimation practices. Thus, they do not provide meaningful insights into the work involved in achieving product goals.