The 5 Most Common Mistakes in the PSM I Exam

The PSM I exam rarely fails because of missing knowledge — it fails because of thinking traps. Scrum.org phrases questions so that everyday experience from traditional projects leads you astray. Here are the five most common traps and how to avoid them.

1. Reading the Scrum Master as a project manager

The classic trap: "The Scrum Master assigns tasks", "The Scrum Master leads the Daily Scrum", "The Scrum Master is responsible for the outcome". All wrong. The Scrum Master is a servant leader who removes impediments and ensures that Scrum is understood and enacted. They manage no one — the Scrum Team is self-managing.

Rule of thumb: if an answer option gives the Scrum Master authority to direct people, it is almost always wrong.

2. Misunderstanding the Daily Scrum as a status meeting

Many questions revolve around the Daily Scrum — and many learners answer from their company routine instead of the Scrum Guide. The correct view: the Daily Scrum is a 15-minute event for the Developers, not for the Scrum Master or the Product Owner. Its purpose is to adapt the Sprint Backlog, not to report status.

The Scrum Master doesn't even have to attend — they only ensure the event takes place and stays within its timebox.

3. Confusing timeboxes and participants

Scrum.org loves detailed questions about the events. Sloppy studying here quickly costs the decisive points:

Sprint: at most 1 month
Sprint Planning: at most 8 hours (for a one-month Sprint)
Daily Scrum: 15 minutes
Sprint Review: at most 4 hours
Sprint Retrospective: at most 3 hours

Also: the Sprint Review is not an acceptance gate by the Product Owner. The Increment is completed during the Sprint — the Review is about inspecting the outcome and adapting the Product Backlog with stakeholders.

4. Mishandling "not done" at the end of a Sprint

What happens to Product Backlog items that are not finished by the end of the Sprint? The intuitive answers ("the Sprint is extended" or "the work is lost") are wrong. Correct: the Sprint ends on time, unfinished items return to the Product Backlog and are re-prioritized by the Product Owner. Only the Product Owner can cancel a Sprint early.

5. Underestimating multiple choice

For questions with several correct answers, you only get points if all correct options are selected — and no incorrect one. So read every option individually and judge it in isolation as true or false. A common pattern trap: options that sound half right but twist one decisive detail ("The Product Owner prioritizes together with management …").

Conclusion

The best protection against these traps is practice under real exam conditions. Work through simulations completely, analyze every mistake, and read the explanation — even for questions you answered correctly. Our PSM I simulations cover exactly these pitfalls and explain for every question why the correct answer is right.