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Computerized Adaptive Testing (CAT) systems, such as those used in standardized assessments, employ algorithms that adjust the difficulty of subsequent questions based on an examinee’s responses to prior questions. The core functionality involves dynamically tailoring the test to the individual’s ability level. A key element of this process is the system’s ability to track responses to each question to determine how well the student is performing. The system uses each response to continually update an estimate of the examinees proficiency, allowing for questions to be better aimed at maximizing the precision of ability measurement.

The advantage of this tailored approach is its efficiency. By focusing on questions that are appropriately challenging, the test can achieve a more accurate evaluation of the examinee’s knowledge and skills with fewer questions overall, as compared to traditional fixed-form tests. This also contributes to fairness, as examinees of varying skill levels are presented with test items that provide optimal information about their individual capabilities, leading to a more precise assessment and a more individualized experience. Historical context reveals that earlier testing methods were not adaptive and therefore less efficient in terms of time and relevance to individual test takers.

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