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Gregory D. Zimet, PhD is professor of pediatrics and clinical psychology at Indiana University School of Medicine.  He also is a faculty member in the Indiana University Cancer Center and holds adjunct appointments in the Department of Psychology at IUPUI and in the Indiana University School of Nursing. 

Dr. Zimet's research interests focus predominantly on psychosocial/behavioral issues associated with acceptability and acceptance of biomedical approaches to the diagnosis and prevention of sexually transmitted infections. His federally-funded research projects have examined predictors of: acceptability of vaccination for STI prevention (including HPV vaccine), acceptability of microbicides for STI prevention, acceptance of herpes testing, and acceptance of hepatitis B vaccination. More recently, Dr. Zimet's NIH-funded research has involved randomized controlled evaluations of brief persuasive message interventions designed to influence decisions about discrete health behaviors (e.g., getting a vaccine or diagnostic test).

Dr. Zimet also developed the Multidimensional Scale of Perceived Social Support, which is a brief, psychometrically sound self-report research instrument designed to assess respondents' perception of support from friends, family, and a significant other.  The MSPSS has been used by hundreds of researchers and has been translated into many languages, including Spanish, French, Italian, Turkish, and Thai.