Company Filing History:
Years Active: 2020
Title: Innovations in Computer Adaptive Testing: The Contributions of Inventor Lingyun Gao
Introduction
Lingyun Gao, an accomplished inventor based in Coralville, IA, has made significant strides in the field of computer adaptive testing (CAT). With two patents to his name, Gao's innovative methods focus on improving the efficiency and accuracy of testing processes, paving the way for advancements in educational assessment.
Latest Patents
Gao's most recent patents revolve around the enhancement of test efficiency and accuracy in computer adaptive tests. The first patent describes a method for utilizing pretest items in a testing environment to calculate interim scores. This method involves a computer-implemented test that incorporates operational items alongside pretest items, enabling a more accurate estimation of latent constructs by controlling error through weighted contributions from pretest items.
The second patent continues in the same vein, introducing a method for test item selection within a computer-implemented test battery that consists of multiple sections. This innovation allows for the calculation of ability estimates from earlier sections to guide the selection of subsequent test items. By leveraging a more informative initial ability estimate, the method enhances interim ability estimation accuracy and optimizes item selection efficiency, while ensuring acceptable levels of item exposure and usage rates.
Career Highlights
Lingyun Gao is currently employed at ACT, Inc., where he applies his expertise in developing advanced testing methodologies. His career at ACT has placed him at the forefront of educational research and innovation, contributing to the enhancement of standardized testing practices.
Collaborations
Throughout his career, Gao has had the privilege of collaborating with esteemed colleagues, including Lisa Gawlick and Changhui Zhang. These partnerships have fostered an environment of innovation and have contributed to the success of Gao's projects and patents.
Conclusion
Lingyun Gao's work in the realm of computer adaptive testing represents a vital advancement in educational assessment methods. Through his innovative patents, he has contributed to improving the accuracy and efficiency of testing, making a positive impact on how assessments are conducted. As Gao continues to develop his ideas further, the future of computerized testing looks promising.