摘要：With the unprecedented crisis created by the Coronavirus pandemic, online teaching and learning became a global solution - embraced by the whole world - that tried to cover, at least in part, in part the problems encountered by the educational systems. An exclusively online format of teaching and learning proved to be a challenge for both the didactic and the learning process. Although the extant research during the pandemic is very abundant, there are few approaches addressing the different perceptions reported by university students enrolled in various programs. This research aims to explore the usefulness of online learning as perceived by civil engineering students, from a multidimensional perspective. A multidimensional model has been developed that manifests on four dimensions: social usefulness of online lectures, the usefulness of online learning platform, learning effectiveness, and, usefulness for school performance. The results show a relatively low perception of the online learning usefulness in an exclusively online educational context, which disables active learning through hands-on experience in laboratory and real-life building sites (considering the regular study process). The model has been cross-validated on a sample of students enrolled in various educational programs then the differences between samples have been analyzed and discussed.
