Aiming at providing quality teaching and learning in higher education, the pendulum of education has recently swung back to Outcome-Based Learning (OBL), in which higher education institutes need to assess the extent to which they have attained those learning outcomes planned for their students. However, OBL assessment is still at its developmental stage with amorphous nature. For this, the present paper proposes a mixed-method approach and consolidates the assessment by providing different methods, namely expert-panel assessment, qualitative longitudinal study, institute-level survey, and course-level evaluation, as means of obtaining more precise results. Integrating findings from different methods is also briefly discussed.[Copyright of Revista de Cercetare si Interventie Sociala. Full article may be available at the publisher's website: http://rcis.ro/en.html]