Jechun An

I serve as a Post-Doctoral Associate (Mentors: Drs. Sam Choo and Kristen McMaster) at the Department of Educational Psychology. My major role is managing the data for two federally funded projects (Numbershire and Early Language Comprehension Individualized instruction; ELCII) that entail large-scale efficacy trials of educational technology focusing on literacy and mathematics.

Before joining, I started my education career as a tenured elementary teacher in a rural area of Korea. After that, I worked as a secondary school principal qualification program coordinator at the National Academy for Educational Administrators at Seoul National University in Korea. Until 2024, I was a lab manager of a federally funded project (The Early Writing Project) to provide professional development for elementary teachers who have students with difficulties in writing.

My research experience includes promoting data-based instruction using an alternative item response theory framework to evaluate large-scale educational outcome data. My extensive experience in alternative item response theory methodology would contribute to estimating the learners’ abilities in a more precise way, ultimately making it less likely to underestimate specific groups of learners’ performances.