Mikyung Kim Wolf Ph.D. (Co-Principal Investigator at ETS)

Email:  mkwolf@ets.org



Dr. Wolf is a Managing Senior Research Scientist in the Center for English Language Learning and Assessment at Educational Testing Service (ETS). Her research areas span technology-enhanced language assessments, alignment between assessments and standards, formative assessment, and validity issues in assessing K-12 English learners. She has led various validity research projects on content and English language proficiency assessments for English learners and the development of classroom-based academic reading assessments for formative purposes, funded by the U.S. Department of Education. 


Danielle Guzman-Orth Ph.D. (ETS)


Dr. Guzman-Orth is a Research Scientist in the Center for English Language Learning and Assessment at Educational Testing Service (ETS). She specializes in monolingual and bilingual assessments, with a particular focus on accessibility and accommodations for ELs, including ELs at risk, and ELs with disabilities. Her research interests focus on improving assessment practices for young dual-language learners and ELs with disabilities taking content and English language proficiency assessments.