Selen Emre WallaceHilal PekerÇaǧri Özköse-BiyikOzkose-Biyik, CagriPeker, HilalWallace, Selen Emre2025-10-0620249798369343111, 97983693431049798369343111979836934310410.4018/979-8-3693-4310-4_52-s2.0-105008259402https://www.scopus.com/inward/record.uri?eid=2-s2.0-105008259402&doi=10.4018%2F979-8-3693-4310-4_5&partnerID=40&md5=06a67e77062691eba7b711456a183593https://gcris.yasar.edu.tr/handle/123456789/8361https://doi.org/10.4018/979-8-3693-4310-4_5Using technology to improve the quality of teaching and learning especially with the outbreak of coronavirus in 2020 has been the fundamental milestone of our lives. Certain technological tools have been indispensable especially in teaching English as a foreign language (EFL). The aim of this quantitative study was to investigate the perceptions of EFL instructors in using webinars for professional development purposes. The study was conducted with 78 EFL instructors at a foundation university in Turkey. The survey items were adapted from Venkatesh et al. and Gasket and the internal reliability was checked both in the pilot and main study. The adopted theoretical framework was the unified theory of acceptance and use of technology (UTAUT). The results indicated differences between the EFL instructors who used webinars and the ones with no exposure to webinars and instructors’ attitudes toward webinars predicted performance expectancy. Based on the results implications and recommendations were provided in this chapter. © 2025 Elsevier B.V. All rights reserved.Englishinfo:eu-repo/semantics/closedAccessCoronaviruses, Internal Reliabilities, Performance, Professional Development, Quality Of Learning, Quality Of Teaching, Quantitative Study, Teaching And Learning, Teaching English As A Foreign Languages, Technological Tools, Engineering EducationCoronaviruses, Internal reliabilities, Performance, Professional development, Quality of learning, Quality of teaching, Quantitative study, Teaching and learning, Teaching English as a foreign languages, Technological tools, Engineering educationBook Part