Ritically evaluate the ability of Outcomes Based Assessment to improve student learning

2500 essay.
Students to be looked at mainly in the TAFE and Vocational sector.
Some sources will include:
Kerka, S. (2000) Competency-based education and training ERIC Clearinghouse: Adult, career and Vocational Education, cbetmr.htm
Cornford, I. (1997) Competency-based training: evidence of a failed policy in training reform, Australian Teacher Education Association Annual Conference and 7th NatiWorkshop on Vocational Teacher Education, Queensland
Hyland, T. (1996) National vocational qualifications, skills training and employers needs: Beyong Beaumont and Dearing, Journal of Vocational Education and Training, Vol. 48, No. 4, pp 349-365
Tobios, R. (1999) Lifelong Learning under a comprehensive national qualifications framework rhetoric and reality, International Journal of Lifelong Learning, Vol. 18, No 2, pp 110-118