Duke University Median Registered Time to Degree to Ph.D. for Students Entering in 1996-2001 (Years)
Duke US median                                    in 2005    
   
   
HUMANITIES 6.3 9.7    
Art History 9.0 n/a    
Classical Studies 6.3 n/a
English 6.1 9.7
German Studies 6.7 n/a
Literature 6.5 9.7
Music 5.7 n/a
Philosophy 6.0 n/a
Religion 5.7 n/a
Romance Studies 7.0 9.2
Slavic Languages  8.0 9.2
SOCIAL SCIENCES 5.7 8.0    
Cultural Anthropology 6.7 9.7
Business 5.7 9.7
Economics 5.7 7.2
History 6.7 10.0
Political Science 6.3 9.7
Psychology 5.0 7.3
Sociology 5.7 9.7
PHYSICAL SCIENCES 5.3 6.7    
Chemistry 5.0 5.9
Computer Science 6.0 7.7
Environment 5.3 7.8
Earth and Ocean Sciences 6.0 7.8
Statistics 4.0 n/a
Mathematics 4.7 6.8
Physics 6.3 6.7
ENGINEERING 5.0 7.2    
Biomedical Engineering 5.7 n/a
Civil and Environmental Engineering 4.3 n/a
Electrical and Computer Engineering 4.7 n/a
Mechanical Engineering 4.3 n/a
BIOLOGICAL SCIENCES 5.7 7.1    
Biological Anthropology and Anatomy 6.7 9.7
Biochemistry 6.0 6.5
Biology 5.7 6.7
Cell Biology 5.7 n/a
Ecology 5.7 7.8
Genetics 5.7 n/a
Immunology 5.1 n/a
Molecular Cancer Biology 5.7 n/a
Molecular Genetics and Microbiology 5.7 n/a
Neurobiology 6.0 n/a
Pharmacology 5.3 n/a
Pathology 5.0 n/a