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. Average Overall Ten-Year Completion Rates for Students Entering Doctoral Programs from 1992-93 through 1994-95 4.5 10.5 22.5 36.1 45.5 50.9 54.6 56.6 0 20 40 60 Cumulative Completion Rate 345678910 Source: Council of Graduate Schools Completion and Attrition Program Data

5. Ten-Year Attrition Rates for Students Entering from 1992-93 through 1994-95 6.6 13.8 19.9 23.6 25.4 27 28.4 29.5 30.2 30.6 0 10 20 30 Cumulative Attrition Rate 12345678910 Source: Council of Graduate Schools Completion and Attrition Program Data

6. Ten-Year Completion Rates for Students Entering from 1992-93 through 1994-95, by Broad Field 56.8 53.7 48.2 40.9 29.3 63.6 62.9 55.9 54.7 49.3

7. Ten-year Attrition Rates for Students Entering from 1992-93 through 1994-95, by Broad Field

8. Ten-Year Completion Rates for Mathematics & Physical Science Students Entering from 1992-93 through 1994-95

9. Ten-Year Attrition Rates for Students Entering Mathematics & Physical Sciences Disciplines from 1992-93 through 1994-95

10. Ten-Year Completion Rates by Institution Type for Students Entering from 1992-93 through 1994-95 0 10 20 30 40 50 60 Cumulative Completion Rate 345678910 Year PrivatePublic Source: Council of Graduate Schools Completion and Attrition Program Data

11. Ten-Year Completion Rates by Cohort Size for Students Entering from 1992-93 through 1994-95 0 10 20 30 40 50 60 Cumulative Completion Rate 345678910 Year SmallMedium Large Source: Council of Graduate Schools Completion and Attrition Program Data Small: 1-7 Medium: 8-14 Large: 15+

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

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

14. Components of Early Attrition (Years 1-4) 0 2 4 6 8 Percent Attrition Year 1Year 2Year 3Year 4 ABCABCABCABC 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 No Master'sMaster's, No Candidacy Master's, With CandidacyTransferred

15. Early Attrition (Years 1-4) Rates for A-, B- and C-Cohorts 20.2 24.2 23.6 024681012141618202224 Attrition Rate 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 AB C

16. Four-Year Continuing, Completion, and Attrition Rates for A-, B- and C-Cohorts 72.77.120.2 67.58.324.2 65.910.523.6 020406080100 Rates C B A Source: Council of Graduate Schools Completion and Attrition Program Data ContinuingCompletionAttrition

17. Four-Year Continuing, Completion, and Attrition Rates by Cohort Year 75.06.518.5 73.06.820.2 70.18.121.9 68.58.622.9 66.68.125.2 67.38.224.4 66.58.824.6 67.59.023.5 63.813.422.8 020406080100 Rates 2000-01 1999-2000 1998-99 1997-98 1996-97 1995-96 1994-95 1993-94 1992-93 Source: Council of Graduate Schools Completion and Attrition Program Data ContinuingCompletionAttrition