Iro-Aghedo, P. E. et al. 2026. Development and Validation of a 21st-Century Skills Instrument Towards Sustainable Employability of Graduates of Technical and Vocational Education and Training in Nigeria. Journal of Innovation in Educational Assessment. 8, 1 (May 2026), 113–128. DOI:https://doi.org/10.66545/d62m4e02.