Scrum Master Certifications Compared: PSM I and CSM
Edited by Dev Kilaru, Senior Data Analyst. How we make our content
Introduction
Two Scrum credentials dominate job postings: Professional Scrum Master I (PSM I) from Scrum.org and Certified ScrumMaster (CSM) from Scrum Alliance. Both are built on the Scrum Guide but differ in how you earn them. Official pages for both blocked automated reading, so the figures here come from training providers. Confirm current prices and rules on scrum.org and scrumalliance.org.
Prerequisites
- Basic familiarity with software or project teams
Step-by-Step Guide
Step 1: Understand what Scrum Masters do
A Scrum Master is accountable for helping the team understand and use Scrum, removing obstacles, protecting focus, and improving how the team works. It is a leadership and coaching role, not a project manager role. Both certifications test your understanding of Scrum theory, values, roles, events, and artifacts as described in the Scrum Guide.
Step 2: Compare how you earn each credential
PSM I is exam-based: anyone can buy an assessment attempt and take it without a mandatory course, so self-study is enough. CSM requires you to attend a live course taught by a Certified Scrum Trainer, after which you take an exam, so the cost includes the course. Courses can build practical skill and confidence, while PSM I is cheaper and more flexible.
PSM I (Scrum.org) CSM (Scrum Alliance)
Course needed No Yes, from an approved trainer
Exam 80 questions, 60 minutes Taken after the course
Pass mark 85% (reported) Set by Scrum Alliance
Fee About $200 (reported) Usually bundled into the course
Renewal None reported Periodic renewal requiredStep 3: Know the PSM I exam
Training providers report PSM I as 80 questions in 60 minutes, with multiple choice, multiple answer, and true or false items, an 85 percent passing score, and an assessment fee of about $200 USD. The certification is reported not to expire. Questions test precise understanding of the Scrum Guide, so vague familiarity is not enough.
Step 4: Prepare for PSM I
Read the current Scrum Guide several times, then study the Scrum.org open assessments, which are free practice tests, until you score near 100 percent repeatedly. Review Scrum Master stances, self-management, the Definition of Done, Sprint events and timeboxes, and the difference between accountabilities. Read the Nexus Guide basics, and know the Evidence-Based Management ideas Scrum.org mentions. Do not rely on dumps, because they teach wrong habits and violate certification rules.
Step 5: Pick the right one
Choose PSM I if you want a respected credential at lower cost and are comfortable self-studying. Choose CSM if you value live coaching and the course networking, or if an employer pays for it. Many hiring managers accept either, so check job postings in your region. Whichever you choose, practice by facilitating real or mock Scrum events.
FAQs
- Are PSM and CSM recognized by employers?
- Yes, both appear widely in job postings. Some regions or companies favor one, so check the postings for roles you want.
- Should I also learn Kanban and SAFe?
- They are useful for many roles but are separate credentials. Master Scrum first, then add others if your target employers use them.
Summary
PSM I is exam-only and cheaper, CSM requires an approved course. Prepare for PSM I with the Scrum Guide and free open assessments, and confirm current prices and renewal rules on the official sites.
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