To assess performance in the UPSC Preliminary Examination, candidates can utilize several strategies. Taking mock tests designed for the UPSC format helps simulate the actual exam experience, allowing for self-evaluation against a time constraint. Candidates can review their answers, identifying strengths and weaknesses in various subjects. Additionally, tracking performance over multiple tests can reveal trends and inform study focus. Reflecting on incorrect answers aids in understanding knowledge gaps and facilitates targeted revisions, ensuring a comprehensive preparation strategy for the actual exam.