What metric could be used to assess a candidate's test-taking efficiency on the PiCAT Verification Test?

Using speed of completion as a metric to assess a candidate's test-taking efficiency is insightful because it measures how quickly a candidate can navigate through the test while still achieving a satisfactory performance. In the context of standardized testing, efficiency is not just about answering questions correctly; it also includes the ability to manage time effectively. A candidate who completes the test in a shorter amount of time while maintaining accuracy indicates a level of proficiency and readiness.

Test-taking efficiency becomes particularly critical in scenarios where time limits are imposed, as it reflects both a candidate's decision-making speed and their ability to prioritize questions. While the other options provide valuable information that could contribute to an understanding of a candidate's performance or preparation, they do not directly capture the aspect of efficiency as clearly as speed of completion does. For example, the number of incorrect answers shows performance quality but not efficiency, and feedback from recruiters or the total time spent studying relates more to overall readiness rather than the specific skill of efficiently completing a test within a time constraint.