Susan Beth Horwitz (January 6, 1955 – June 11, 2014) was an American computer scientist noted for her research on programming languages and software engineering, and in particular on program slicing and dataflow-analysis.
She was an award-winning teacher at her institution and was the founder of Peer Led Team Learning for Computer Science (PLTLCS), creating the Wisconsin Emerging Scholars-Computer Science (WES-CS) program.
They published a paper in 2009[1] that showed that active recruiting combined with peer-led team learning is an effective approach to attracting and retaining under-represented students in an introductory Computer Science class.
She was a member of the Educational Testing Services Advanced Placement Computer Science Test Development Committee for ten years from 1987 to 1997, including chairing the committee for five years from 1992 to 1997 at a time when the programming language for the exam changed from Pascal to C++.
She joined the Department of Computer Science at the University of Wisconsin in Madison as an assistant professor in 1985.