The lockdown restrictions during the pandemic favored an intense use of online educational platforms thus bringing in front usability and technology acceptance. However, many studies are neglecting factors related to users, context, and actual use. Self-efficacy is an important variable explaining the behavior influencing the key determinants of technology acceptance and actual use. The purpose of this work is to develop and test a multidimensional model of academic self-efficacy that manifests in four dimensions: self-efficacy with self-regulated learning, computer selfefficacy, social self-efficacy, and self-efficacy with the course. The results show that although the four-factor structure is well supported, the factor loading on the computer self-efficacy is small.