Although an integral part of the pedagogical process is the evaluation of students, questions remain about the purpose and characteristics of effective assessments. Assessments should benefit both the instructor and the student, but this could be a challenge in large classes, such as the English service courses offered at the University of Guyana (UG), which are compulsory courses offered to over 2,000 first year students annually. However, the transition to online delivery of these courses because of the Coronavirus (COVID-19) pandemic has offered new opportunities for innovation in relation to course assessments. Consequently, this Action Research study was undertaken with the intention of improving the methods of assessment in the course, Introduction to the Use of English (ENG 1105), one of the three English service courses currently offered at UG.Multiple methods of data collection, including surveys, and semi-structured interviews, observations and analyses were used to determine how the assessment strategies used in the course helped develop academic self-efficacy in students and prepare them for other courses in their programs of study. The findings from the first two cycles of this study suggest that while the current assessment methods used in the course are beneficial to both lecturers and students, there is a need to adjust aspects of the assessments so students benefit from assessments that better align with other courses in their programs, as well as sharpen their English language skills. The third cycle captures the impact that the use of an innovation-an ungraded portfolio-had on student learning and suggests it should become a regular feature in the English service courses.