Goulão, FátimaREDINE, Red de Investigación e Innovación Educativa, Madrid, Spain2025-01-272025-01-272025-01978-84-126060-5-8http://hdl.handle.net/10400.2/19406With the exponential growth of online learning, driven by the rapid evolution of digital technology and the need for flexibility in learning, there is a need to understand how psychological factors, such as self-efficacy, influence students’ experience in this environment. This article aims to explore the concept of self-efficacy in the context of online learning, examining its implications for student engagement, performance, and satisfaction. Self-efficacy theory describes an individual’s belief in their ability to successfully perform a particular task or achieve a specific goal. In online teaching, self-efficacy plays a crucial role as students face unique challenges such as time management, self-discipline and adapting to learning technologies. In our research we used a sample of 204 online students. Of these, 84.3% are female and 15.7% are male. The average age is 40 (SD 9.1), with a maximum age of 65 and a minimum of 21. The mode was 39 years. The self-efficacy questionnaire had a Cronbach’s alpha of 0.943. The average grade in the course is 16, with a mode of 17. The correlation between the grades and the level of self-efficacy was positive, but not statistically significant. In other words, our data is in line with the theory, despite not being statistically significant. One of the possible explanations could be the small variability of the classifications, which are quite high.engAdult learnerOnline learningSelf-disciplineSelf-efficacySucessconference objecthttps://doi.org/10.58909/adc24576293