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NOTICE TO Ph.D. APPLICANTS: Admission to the Ph.D. program is highly selective.

Ph.D. Degree Admission Requirements

To be admitted to a Ph.D. program, all applicants must meet Graduate School requirements, as well as departmental requirements. Students are considered for admission on a rolling admission basis and priority will be given to the applications which are received and fully completed by December 31.

Graduate School Requirements

International students must submit a TOEFL score or an IELTS. Applicants should have a minimum TOEFL score: 550 (paper), 213 (computer), 80 (iBT); or minimum IELTS score 6.5.

  • Domestic students (U.S. Citizens and Permanent Residents)
  • International students
  • Departmental Requirements

    Subject to meeting the admission requirements of the Graduate School , admission requirements for the Ph.D. in computer science consist of:

    • A master's degree in computer science or a related field with a minimum GPA of 3.25/4.0.
    • A minimum GRE score of 700 for the Quantitative (Revised General Test score of 155) and 4.0 for Analytical writing scores for the general GRE, and it is recommended that results from the GRE subject area in computer science or a related area be included.
    • In exceptional cases, high achieving students with only bachelor degrees will be admitted to the program. Each student, in addition to the Ph.D. program course requirements, must complete at least 15 semester hours of approved computer science courses including CS 401, CS 420, CS 455, and two 500-level lecture courses, with a minimum accumulated GPA of 3.25/4.0 in those courses. If a specific course, or its equivalent, is already part of the student's academic background, an alternate course will be substituted.

    Each application is reviewed and evaluated on an individual basis. The evaluation of applicants for admission is based primarily on the student's academic record and area of research interest. Application materials should include evidence of scholarly ability and/or achievement (e.g. awards, scholarships, work experience, recommendation letters, and published research papers). Only those who best meet the research goals and objectives of the doctoral program will be selected for admission. Graduate Assistantships are available for more than 90% of admitted Ph.D students.

    Our recommendation regarding your admission is dependent upon your eligibility, which will be determined from the information you provide on the forms and required documentation. You will need to submit ALL of the following information electronically before any action will be taken on your application:

    1. Read all instructions & information carefully. Click the "Apply Now" link & fill out information completely. Use your official name as it appears on your passport since documents must match.

    2. $50 application fee in U.S. funds – This can be paid with credit card done online at the time of application. Otherwise, you must pay by check made payable to "Southern Illinois University Carbondale;" this fee will not be waived and is non-refundable. U.S. bank checks or money orders should be sent with student's name on front of check in "memo" section to department address which follows below.

    3. Official transcripts and/or diplomas (degrees) for all university-level courses in your native language and English. NOTE: Your master's U.S.-equivalent Grade Point Average (GPA) must be 3.25 (4.0=A) or higher. These should be NON-Consolidated Official certified true photocopies of individual mark sheets and/or degrees for each semester or year courses, in your native language and English. They must be issued & certified by the University and have an original school seal and original signature of 1) The Registrar's Office, 2) The Controller of Exams OR 3) the U.S. Educational Foundation. Consolidated mark sheets are not acceptable.
    4. TOEFL or IELTS score (International applicants only, minimum score is 550 paper/213 computer based/80 iBT; IELTS 6.5) – A) photocopy of the TOEFL Examinee Score Report or IELTS report uploaded with application or sent to our department (georgia@cs.siu.edu) AND B) an official TOEFL or IELTS report or score sent to our Graduate School from Educational Testing Services. These scores cannot be more than 24 months old at the beginning of the semester for which you are applying.
    5. GRE score report: upload the GRE Score Report with your application AND B) have an official GRE score sent to our Graduate School from Educational Testing Services. A minimum GRE score of 700 for the Quantitative (Revised General Test score of 155) and 4.0 for Analytical writing scores for the general GRE, and it is recommended that results from the GRE subject area in computer science or a related area be included. This is also required for any campus fellowship applications or those seeking future departmental or university funding.
    6. Recommendation letters [application has form provided & ability to upload scanned/signed letters with form] -- three (3) letters recommended.
    7. Statement of Purpose.
    8. Photo of passport page (International applicants only) which has your full name & birth date. This is a policy required of us by the USCIS because the information on the passport must match the information on your application & your I-20 if you are admitted. This is usually the second page.
    9. Any additional evidence of scholarly ability and/or achievement (e.g. awards, scholarships, work experience, and published research papers; CV or resume may be included).

    NOTE: You are responsible for providing all the documentation and information. You should have ORIGINALS of all documentation you submitted so you can provide them immediately to us, if requested. This department will not request anything from other departments, colleges, universities or other sources. Remember to always use your full name as it appears in your passport when you correspond with any office at this university.


    If needed to postal mail or courier deliver, please send the above to:

    Graduate Program Assistant
    Department of Computer Science
    Faner 2125 Mail Code 4511
    1000 Faner Drive
    Southern Illinois University
    Carbondale IL 62901