This document summarizes a presentation about developing and implementing a performance-based assessment of information literacy skills for freshman English students at the University of North Texas. It describes collaborating between the university libraries and English department to deliver library instruction sessions to nearly 600 students over two years. Pre- and post-instruction assessments found students had poor navigation and search skills, despite overestimating their abilities. To improve learning, librarians added active learning exercises and developed software to directly observe students' research performance, finding engagement and demonstration of skills increased. The authors conclude performance-based assessment is needed to truly evaluate information literacy.