Mean and Median Times-to-Completion of Graduate Programs - 1996 to 2000
(Calculated in Full-time Equivalent Years)

  1996 1997 1998 1999 2000 Average All Years
N Mean Years Median Years N Mean Years Median Years N Mean Years Median Years N Mean Years Median Years N Mean Years Median Years N Mean Years Median Years
PhD Science
    Biology
    Chemistry
    Earth Sciences
    Mathematics
    Physics
    Degree Total		  
7
8
6
7
6
34		  
3.27
4.32
4.56
4.21
5.59
4.35		  
3.44
4.33
4.50
4.00
5.72
4.33		  
5
7
3
5
5
25		  
4.67
3.95
3.93
2.96
4.07
3.92		  
5.00
4.22
4.33
2.67
3.67
4.00		  
3
7
6
2
3
21		  
4.11
3.90
6.35
4.67
5.07
4.87		  
4.00
3.33
6.00
4.67
5.00
4.67		  
5
3
7
5
1
21		  
3.47
3.67
3.95
4.64
5.33
4.03		  
3.33
3.67
3.67
4.33
5.33
4.00		  
4
8
2
1
2
17		  
4.00
3.26
5.05
3.22
5.67
3.93		  
4.83
3.22
5.05
3.22
5.67
3.89		  
24
33
24
20
17
118		  
3.83
3.84
4.79
4.00
5.05
4.23		  
4.00
3.67
4.50
4.00
5.33
4.11
PhD Engineering
    Civil Engineering
    Electrical Engineering
    Mechanical & Aerospace Engineering
    Degree Total		  
1
12
1
14		  
2.67
3.85
4.44
3.81		  
2.67
3.94
4.44
3.94		  
7
9
5
21		  
5.22
3.07
4.84
4.21		  
4.78
2.78
5.00
4.33		  
2
5
1
8		  
4.22
2.58
6.33
3.46		  
4.22
2.67
6.33
3.50		  
3
13
4
20		  
4.78
3.35
4.33
3.76		  
5.00
3.55
3.50
3.67		  
2
10
8
20		  
5.33
3.89
4.39
4.23		  
5.33
3.78
4.17
4.17		  
15
49
19
83		  
4.84
3.45
4.60
3.97		  
4.67
3.55
4.44
4.00
PhD Computer Science
    Degree Total		  
1		  
4.67		  
4.67		  
 		  
 		  
 		  
3		  
5.67		  
5.33		  
4		  
3.81		  
3.83		  
4		  
6.25		  
6.17		  
12		  
5.16		  
5.17
PhD Management
    Degree Total		  
 		  
 		  
 		  
 		  
 		  
 		  
 		  
 		  
 		  
1		  
4.00		  
4.00		  
3		  
4.56		  
4.33		  
4		  
4.42		  
4.33

Source: Winter, Spring and Fall frozen student records, 1996 to 2000.
Notes: 1. 'Full-time Equivalent Years' represents the time taken in actual terms registered, weighted by part-time and full-time status and discounting terms of non-registration.