How to Become a Scrum Master and What's the Difference Between PSM and CSM?

Both the PSM and CSM certifications have their place. The following table will help you decide which one is right for you.

There are essentially two certifications: the Certified Scrum Master® (CSM®) from Scrum Alliance and the Professional Scrum Master (PSM I) from Scrum.org.

Both the PSM and CSM certifications have their place. The following table will help you decide which one is right for you.

Professional Scrum Master (PSM)Certified Scrum Master (CSM)
Cost$150 USDapprox. €1,500
Special featureCan be taken without trainingOnly with a training partner
Exam questions80, Multiple Choice35, Multiple Choice
Passing scoreMin. 69% correct answersMin. 85% correct answers
Language(s)EnglishEnglish, German, etc.
ValidityValid for life2 years

In summary, the PSM certification is significantly cheaper and, most importantly, valid for life! As an IT consultant and developer who mostly participates only as a Scrum team member, the PSM certification was therefore absolutely the right choice for me.

“But CSM is surely better?”

No! Both organizations offer a good course level.

In the end, it comes down to how well each individual has understood what it’s all about.

How do I best prepare for the PSM exam without a training partner?

Read through the Scrum Guide and do plenty of practice exams.

Whizlabs has a good exam simulator.