Alexis A. Lopez is a research scientist in the Center for Language Education and Assessment Research at ETS. His areas of interest include assessing the language proficiency and content knowledge of English learners (ELs) in K–12 public schools in the United States. His work at ETS has focused on developing more accessible content assessments for ELs, examining how technology can be used to improve classroom assessments for ELs, using formative assessment to improve teaching and learning, assessing young language learners, and examining the use of dual language assessments. Lopez earned a Ph.D. in education with a certificate in advanced study in second language acquisition and teacher education from the University of Illinois at Urbana–Champaign. He also holds an M.A. in teaching English as a second language from the University of Illinois at Urbana–Champaign and a B.A. in Spanish and English from the Universidad Pedagógica Nacional in Colombia. Prior to joining ETS, Lopez was an associate professor in the Faculty of Education at Universidad de los Andes in Bogotá, Colombia, and an assessment developer at Second Language Testing in Rockville, Maryland.