Duke University Median Registered Time to Degree to Ph.D. for Students Entering in 2000-2005 (Years)
Duke US median in 2009
HUMANITIES 6.0 9.5
Art History 7.4 n/a
Classical Studies 5.7 n/a
English 6.0 n/a
German Studies 5.0 n/a
Literature 6.9 n/a
Music 6.7 n/a
Philosophy 5.5 n/a
Religion 5.7 n/a
Romance Studies 6.8 n/a
SOCIAL SCIENCES 6.0 7.7
Business 5.3 8.7
Cultural Anthropology 6.7 9.1
Economics 4.7 7.3
History 6.6 9.3
Political Science 6.0 8.5
Psychology 5.7 6.9
Sociology 6.0 8.7
PHYSICAL SCIENCES 5.0 6.5
Chemistry 5.0 5.8
Computer Science 5.7 8.2
Earth and Ocean Sciences(includes Geology) 4.4 7.3
Environment 5.2 n/a
Mathematics 5.0 6.3
Physics 5.7 6.3
Statistical Science 4.4 n/a
ENGINEERING 4.7 6.7
Biomedical Engineering 5.7 n/a
Civil and Environmental Engineering 4.7 7.4
Electrical and Computer Engineering 4.7 7.2
Mechanical Engineering 4.7 7.0
BIOLOGICAL SCIENCES 5.7 6.5
Biochemistry 5.7 n/a
Computational Biology and Bioinformatics(includes BGT) 5.7 n/a
Evolutionary Anthropology (Biological Anthropology and Anatomy) 7.3 n/a
Biology(includes Botany,Zoology) 5.7 n/a
Cell Biology 5.0 n/a
Ecology 5.7 n/a
Genetics 5.4 n/a
Immunology 5.9 n/a
Molecular Cancer Biology 5.4 n/a
Molecular Genetics and Microbiology(Genetics Departments,Microbiology) 5.3 n/a
Neurobiology 5.7 n/a
Pathology 4.7 n/a
Pharmacology 5.5 n/a
Five-year cohort data posted:  November 2011