Advanced – AI & ML Testing
Mean Reciprocal Rank (MRR) – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
A ranking metric equal to the average of 1/rank of the first correct answer across queries.
In simple words
How high up the first correct answer tends to appear in a ranked list.
Exam tip
MRR is common in QA systems and RAG evaluations focused on first-hit accuracy.
Related terms
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