Ph.D. Completion and Attrition

1. Ph.D. Completion and Attrition CGS Board of Directors December 4, 2007

2. Analysis - Sample Results • Completion • 10-. 7-, and 4-year • By institution type (public vs. private) • By cohort size • Attrition • 10-. 7-, and 4-year • By institution type (public vs. private) • By cohort size • Early attrition • Continuing students

3. Cohort Definitions for Baseline Data Analysis • A-Cohorts(10-year cohorts) • Students enrolling in 1992-93; 1993-94; 1994-95 • 12,135 students (313 programs) • B-Cohorts (7-year cohorts) • Students enrolling in 1995-96; 1996-97; 1997-98 • 11,697 students (320 programs) • C-Cohorts(4-year cohorts) • Students enrolling in 1998-99; 1999-2000; 2000-01 • 12,125 students (323 programs)

4. 60 56.6 54.6 50.9 45.5 40 36.1 Cumulative Completion Rate 22.5 20 10.5 4.5 0 3 4 5 6 7 8 9 10 Source: Council of Graduate Schools Completion and Attrition Program Data Average Overall Ten-Year Completion Rates for Students Entering Doctoral Programs from 1992-93 through 1994-95

5. 30.6 30.2 29.5 30 28.4 27 25.4 23.6 19.9 20 Cumulative Attrition Rate 13.8 10 6.6 0 1 2 3 4 5 6 7 8 9 10 Source: Council of Graduate Schools Completion and Attrition Program Data Ten-Year Attrition Rates for StudentsEntering from 1992-93 through 1994-95

6. 70 60 50 40 Cumulative Completion Rate 30 20 10 0 3 4 5 6 7 8 9 10 Year Engineering Life Sciences Mathematics & Physical Sciences Social Sciences Humanities Source: Council of Graduate Schools Completion and Attrition Program Data Ten-Year Completion Rates for Students Entering from 1992-93 through 1994-95, by Broad Field 63.6 56.8 62.9 55.9 53.7 54.7 48.2 49.3 40.9 29.3

7. 40 35 30 25 Cumulative Attrition Rate 20 15 10 5 1 2 3 4 5 6 7 8 9 10 Year Engineering Life Sciences Mathematics & Physical Sciences Social Sciences Humanities NOTE: 10-Year Attrition Rates include all cohorts entering 1992-93 through 1994-95 Source: Council of Graduate Schools Completion and Attrition Program Data Ten-year Attrition Rates for Students Enteringfrom 1992-93 through 1994-95, by Broad Field

8. 70 60 50 40 Cumulative Completion Rate 30 20 10 0 3 4 5 6 7 8 9 10 year Chemistry Computer and Information Sciences Mathematics Physics and Astronomy Source: Council of Graduate Schools Completion and Attrition Program Data Ten-Year Completion Rates for Mathematics & Physical Science Students Entering from 1992-93 through 1994-95

9. 50 45 40 35 30 Cumulative Attrition Rate 25 20 15 10 5 1 2 3 4 5 6 7 8 9 10 Year Chemistry Computer and Information Sciences Mathematics Physics and Astronomy NOTE: 10-Year Attrition Rates include all cohorts entering 1992-93 through 1994-95 Source: Council of Graduate Schools Completion and Attrition Program Data Ten-Year Attrition Rates for Students Entering Mathematics & Physical Sciences Disciplines from 1992-93 through 1994-95

10. 60 50 40 30 Cumulative Completion Rate 20 10 0 3 4 5 6 7 8 9 10 Year Private Public Source: Council of Graduate Schools Completion and Attrition Program Data Ten-Year Completion Rates by Institution Type for Students Entering from 1992-93 through 1994-95

11. 60 50 40 30 Cumulative Completion Rate 20 10 0 3 4 5 6 7 8 9 10 Year Small Medium Large Source: Council of Graduate Schools Completion and Attrition Program Data Ten-Year Completion Rates by Cohort Size for Students Entering from 1992-93 through 1994-95 Small: 1-7 Medium: 8-14 Large: 15+

12. Comparison of Seven-Year Completion Ratesbetween A- and B- Cohorts, by Broad Field Mathematics & Physical Sciences

13. Early Attrition(Years 1-4) • Components of Early Attrition • Without a master’s • With master’s, without candidacy • With master’s, with candidacy • Transfer

14. 8 6 Percent Attrition 4 2 0 A B C A B C A B C A B C Year 1 Year 2 Year 3 Year 4 No Master's Master's, No Candidacy Master's, With Candidacy Transferred Source: Council of Graduate Schools Completion and Attrition Program Data NOTE: A-cohorts include all cohorts entering 1992-93 through 1994-95 B-cohorts include all cohorts entering 1995-96 through 1997-98 C-cohorts include all cohorts entering 1998-99 through 2000-01 Components of Early Attrition (Years 1-4)

15. 23.6 24.2 20.2 0 2 4 6 8 10 12 14 16 18 20 22 24 Attrition Rate A B C NOTE: A-cohorts include all students entering 1992-93 through 1994-95 B-cohorts include all students entering 1995-96 through 1997-98 C-cohorts include all cohorts entering 1998-99 through 2000-01 Source: Council of Graduate Schools Completion and Attrition Program Data Early Attrition (Years 1-4) Ratesfor A-, B- and C-Cohorts

16. 65.9 10.5 23.6 A 67.5 8.3 24.2 B 72.7 7.1 20.2 C 0 20 40 60 80 100 Rates Continuing Completion Attrition Source: Council of Graduate Schools Completion and Attrition Program Data Four-Year Continuing, Completion, and Attrition Rates for A-, B- and C-Cohorts

17. 63.8 13.4 22.8 1992-93 67.5 9.0 23.5 1993-94 66.5 8.8 24.6 1994-95 67.3 8.2 24.4 1995-96 66.6 8.1 25.2 1996-97 68.5 8.6 22.9 1997-98 70.1 8.1 21.9 1998-99 73.0 6.8 20.2 1999-2000 75.0 6.5 18.5 2000-01 0 20 40 60 80 100 Rates Continuing Completion Attrition Source: Council of Graduate Schools Completion and Attrition Program Data Four-Year Continuing, Completion, and Attrition Rates by Cohort Year