OPRA is graded pass/fail by APC, using the Rasch model. Candidates do not receive a numeric score — only a pass or fail outcome. "~50% correct" is a rule of thumb that often correlates with passing on practice mocks, not a published threshold.
What we know from practice mocks
Across PassPilot OPRA mocks, candidates who complete 8+ full mocks under timed conditions pass at noticeably higher rates than those who don't. The platform's own pass-rate estimate is not an official APC statistic — it is a signal from practice data only.
Where people lose points
Most fail in two places: pharmaceutical calculations and clinical scenarios involving drug interactions. Both are heavily tested, both require practice, both are very teachable.
Strategy
Take 8 full mocks. Review every wrong answer. After the 4th mock, your score will start to plateau — that's when targeted revision kicks in. Don't just take mocks, study them.