Best free resources for RSO prep — what's actually worth your time
Compiling a list of what's actually useful for RSO prep after going through a lot of material that wasn't. Wanted to share what worked for me and hopefully save others some time.
For study guide specifically, the free resources are surprisingly good. The rso radiation biology and health effects 2 has questions that closely match real exam difficulty — not dumbed-down versions that give you false confidence. For the conceptual background, rso test is one of the better free reads available.
What I'd skip: most YouTube "pass in one week" content. The explanations are surface-level and don't prepare you for the applied questions on the actual RSO exam. Flashcards alone also aren't enough for this one.
What actually worked: timed practice sets with immediate review of wrong answers, reading the official reference material for any concept that came up more than twice, and finding one study partner for accountability.
Late to this thread but wanted to add — the study guide section trips up more people than any other part. If you're scoring below 71% there in practice, treat it as your only focus for at least a week before moving on. Breadth at the expense of depth in that area is a common mistake.
Late to this thread but wanted to add — the study guide section trips up more people than any other part. If you're scoring below 73% there in practice, treat it as your only focus for at least a week before moving on. Breadth at the expense of depth in that area is a common mistake.
Bookmarking this. I'm still in the early stages of RSO prep and threads like this are way more useful than generic study guides. The specifics about study guide are particularly helpful — that's the section I've been avoiding.
Really helpful breakdown, thanks for sharing. I'm at week 4 of my RSO prep and the exam prep section is exactly where I'm struggling too. Going to try the approach you described and see if it moves my scores.
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