
Professor Dr. John Callaghan
Associate Professor
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Biography
Professor John Callaghan is an Associate Professor Emeritus in the Department of Biological Sciences at the University of Southern California. He received his Ph.D. in Sociopsychology from the University of Southern California in 1971. His academic journey includes significant positions such as Director at the University, Associate Professor, and various roles at St. Mary’s College, University of London Institute of Education. His research primarily focuses on the psychology of sports, particularly exploring the motivation of elite athletes, the dynamics of aggression in players and spectators, and the relationship between anxiety levels and performance. In addition to these topics, he has a keen interest in the Olympic Movement and international sports. Notably, he co-authored a journal article discussing the structural model of determinants related to athlete dissatisfaction, published in the International Journal of Sport Sciences. His work connects psychological principles with physical education and sports administration, contributing valuable insights to the fields of sports psychology and education.
Research Interests
Experience
Associate Professor
1982-01-01 — PresentUniversity of Southern California • Los Angeles, CA
Director
1977-01-01 — 1982-01-01University of Southern California • Los Angeles, CA
Principal Lecturer
1973-01-01 — 1977-01-01St. Mary’s College, University of London Institute of Education •
Assistant Professor
1971-01-01 — 1973-01-01University of Southern California • Los Angeles, CA
Lecturer/Senior Lecturer
1960-01-01 — 1965-01-01St. Mary’s College, University of London Institute of Education •
Requirements for University of Southern California
Master Program
Requirements
GPA Requirement
TOEFL
IELTS
GRE General
Prerequisites
Application Checklist
- Online application
- Official transcripts
- Personal Statement
- Resume/CV
- Letters of Recommendation (not required for MS CS, but allowed)
Specialization Notes
GRE is NOT required for Master's applicants for 2025-2026.
Master Program
Requirements
GPA Requirement
TOEFL
GRE General
Prerequisites
Application Checklist
- Official transcripts
- GRE General scores
- TOEFL scores (International)
- Three letters of recommendation
- Personal Statement
Specialization Notes
Requires general GRE for all graduate degrees.
Doctorate Program
Requirements
GPA Requirement
TOEFL
IELTS
Prerequisites
Application Checklist
- Online application
- Transcripts
- Statement of Purpose
- Letters of Recommendation
- Writing Sample (if requested)
Specialization Notes
GRE requirements vary; many Dornsife programs have made it optional.
Master Program
Requirements
GPA Requirement
GMAT
TOEFL
Prerequisites
Application Checklist
- Resume/CV
- Required essays
- Official transcripts
- GMAT/GRE scores
- TOEFL/IELTS (International)
Specialization Notes
MS in Finance is a rigorous program at Marshall School of Business.
Master Program
Requirements
GPA Requirement
TOEFL
IELTS
Prerequisites
Application Checklist
- Resume
- Personal Statement
- Writing Sample/Journalism Portfolio
- Two letters of recommendation
- Kira Talent Video Interview
- Official transcripts
Specialization Notes
GRE is not required for Summer 2026 admission.