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Explore innovative approaches to educational assessment through this academic colloquium featuring Craig Zilles from the University of Illinois at Urbana-Champaign. Learn about research-backed strategies for implementing frequent testing and "second-chance testing" that increase student learning while reducing test anxiety. Discover how the Computer-Based Testing Facility (CBTF) revolutionizes exam administration by combining proctored computer labs with the PrairieLearn platform to enable sophisticated, auto-graded assessments with minimal instructor workload. Examine patterns of academic dishonesty in unproctored online assessments and understand how dedicated testing infrastructure addresses these challenges. Gain insights into key enabling technologies including question generators, asynchronous exam scheduling, and automated grading systems that have successfully supported over 100,000 proctored exams. See how these innovations have transformed large-scale courses, including a CS 1 course serving 1,150 students with weekly examinations managed by a single faculty member. Understand the pedagogical benefits of frequent assessment over traditional cramming-inducing exam schedules and learn practical implementation strategies for reducing administrative burden while improving educational outcomes.