CT-AI: Certified Tester AI Testing Version 2.0

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QuestionQ46

ML Functional Performance Metrics

A test engineer is planning tests for an AI-enabled wearable medical device. The device will identify potential heart issues in patients and automatically dispatch emergency services. Few patients are expected to have heart issues, and the available data reflects this. In this situation, it is considered more important to avoid sending emergency services unnecessarily than to identify actual heart problems.

Which ONE of the following metrics should the test engineer select to ensure emergency services are dispatched only when required?

Explanation

Precision measures how often positive predictions are correct: among cases for which the device dispatches emergency services, it is the proportion that truly involve a heart issue. Maximizing precision directly reduces false-positive, unnecessary dispatches, which is the stated priority.

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