As social work is an international profession, it is necessary to establish the validity of assessment of the field practicum of students for the purpose of professional accreditation. This study calibrates an indigenous assessment tool, the Social Work Practicum Assessment (SWPA), developed in Hong Kong with a competency-based evaluation (CBE) tool popularized in North America, using data collected from 171 social work final-year undergraduates. The results demonstrate convergence between the SWPA and CBE when rated by field instructors and were greater when the student-assessed CBE was higher. Alternatively, the student-assessed CBE displayed greater convergence with the instructor-rated CBE when the indigenous assessment was higher. The positive results imply the generalizability of the assessments across places.