Saerhim Oh is a research scientist in the Research Institute at ETS. She received her Ed.D. in applied linguistics with a specialization in language assessment from Teachers College, Columbia University. During her doctoral studies, she was a doctoral research fellow at ETS for three years, and she was the recipient of the Robert Lado Memorial Award for best graduate student paper at the Language Testing Research Colloquium (2017) and the recipient of the Jacqueline Ross Dissertation Award for best dissertation in language testing (2019). Prior to joining ETS in 2022, she was a senior test development manager on the Assessment Research Innovation team in the English Language Learning division at Pearson, where her research mainly focused on reliability and validity research on machine-scored language tests assessment speaking and writing proficiency in the workplace.
At ETS, Saerhim mainly works on research to support the TOEIC family of assessment, mainly on reading and writing, and benchmarking. She has led projects on setting benchmarks for TOEIC such as the development of the Benchmarking Tool to support TOEIC users in setting TOEIC cut scores and multiple research projects to recommend job-specific cut scores in the workplace.
Saerhim has presented and published on topics on second language writing assessment, interaction in written communication, and technology-mediated language assessment. Her publications include book chapters and articles in peer-reviewed journals such as Language Assessment Quarterly, Journal of Second Language Writing, Language Learning and Technology, and System.
Last updated: 1/30/2026