PSM I vs CSM: which should you choose?
Scrum.org vs Scrum Alliance
Both certify Scrum Master knowledge of the same Scrum Guide, but differ in provider, rigour and format. PSM I (Scrum.org) is exam-only with an 85% pass bar and no mandatory course; CSM (Scrum Alliance) requires an accredited course and has a lower 74% bar.
PSM I vs CSM โ side by side
| โ๏ธ PSM I | ๐ CSM | |
|---|---|---|
| Certifying body | Scrum.org | Scrum Alliance |
| Questions | 80 | 50 |
| Duration | 60 min (1h) | 60 min (1h) |
| Pass / scoring | 85% pass mark | 74% pass mark |
| Open / closed book | Closed book | Closed book |
| Question types | Single best answer (multiple choice), Multiple response (choose two or more), True / false | Single best answer (multiple choice), Multiple response (choose two or more), True / false |
| Primary focus | Scrum Team & Accountabilities, Scrum Events | Scrum Master Role & Servant Leadership, Scrum Events |
Which is right for you?
Choose PSM I ifโฆ
You want a rigorous, exam-first certification you can take independently (no mandatory course) and that never expires.
Choose CSM ifโฆ
You prefer an instructor-led course and the Scrum Alliance community โ note CSM requires renewal every two years.
Verdict: PSM I is cheaper and tougher; CSM bundles the training. Both prove the same core Scrum knowledge.
PSM I vs CSM โ FAQ
Is PSM I harder than CSM?๏ผ
Difficulty depends on your background. PSM I has 80 questions in 60 minutes (85% to pass); CSM has 50 in 60 minutes (74% to pass). PSM I is cheaper and tougher; CSM bundles the training. Both prove the same core Scrum knowledge.
Should I take PSM I or CSM first?๏ผ
PSM I is cheaper and tougher; CSM bundles the training. Both prove the same core Scrum knowledge.
Can I hold both PSM I and CSM?๏ผ
Yes โ many professionals hold both, and they can complement each other on your CV.
More certification comparisons
Comparison guides summarise each certification's published exam content outline for study planning. Always confirm current details with the awarding body.