Stanley Sidney Schor, C’43, G’50, PhD’52, a former associate professor of statistics, economics, and public health and preventive medicine in Penn’s School of Arts and Sciences, died on December 26, 2022 of vascular dementia. He was 100.

Born in the Swampoodle neighborhood of North Philadelphia in 1922, Dr. Schor served in the U.S. Army during World War II. He then earned bachelor’s, master’s, and doctoral degrees at Penn in 1943, 1950, and 1952, respectively. In 1950, while working towards his PhD, he joined the faculty of Penn’s School of Arts and Sciences as an instructor. He rose through the ranks at Penn, becoming an assistant professor in 1953 and an associate professor in 1958, with appointments in the departments of statistics, economics, and public health and preventive medicine. At Penn, he taught statistics and research methodology and contributed expertise to several national conferences. After leaving Penn in 1964, Dr. Schor joined the faculty at Temple, where he taught biometrics until 1975 and served as onetime department chair. In 1975, began a distinguished tenure at Merck. He became executive director of clinical biostatistics and research data systems, retiring in 1991.

Dr. Schor conducted pioneering research in biostatistics. His examinations and evaluations of medical research and protocols and his follow-up recommendations significantly improved care for heart attacks, diabetes, cancer, and other critical health conditions. Dr. Schor served as the director of biostatistics at the American Medical Association in Chicago in the 1960s, a clinical professor at Hahnemann Medical School, a visiting professor at medical schools in Chicago and Israel, and a guest faculty member at the Mayo Clinic and the National Institutes of Health. He served as president of the Philadelphia chapter of the American Statistical Association, on national and international committees and advisory boards, and as a statistical consultant to government and private agencies. He wrote or cowrote more than 50 scientific papers and two books, including 1968’s influential Fundamentals of Biostatistics.

Dr. Schor is survived by his son, Mark; his daughters, Robin and Randi; and two granddaughters and other relatives. A memorial service was held on December 29.

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