I have an established and ongoing programme in basic and applied research in the fields of health psychology and behavioural medicine. A major strand of my research involves applying social-cognitive theories to the study of condom use in young people in diverse cultural settings, especially sub-Saharan African. In relation to this, I have developed the first integrated theory (i.e., combining social-cognitive models) of the determinants of condom use in sub-Saharan African youth, using meta-analytic techniques. This work was supported by the University of Berkeley, California, and the William and Flora Hewlett Foundation, through a Social Science Meta-Analysis and Research Transparency (SSMART) Research Fellowship.
Another strand of my research includes quantitative and qualitative evidence syntheses of health behaviours and interventions. I have published evidence syntheses in the areas of sexual risk-taking, substance use, dietary behaviours, school bullying, and intervention efficacy across health behaviour domains.
I am looking into issues surrounding transparency and replicability in psychological research, with an emphasis on study quality appraisal, i.e., ways of measuring the extent to which a study took appropriate measures to minimize bias and error. Apropos, I have developed the first quality appraisal tool for survey studies in psychology, which is under preparation for publication.
Protogerou, C., Johnson, B.T., & Hagger, M. S. (2018). An integrated model of condom use in sub-Saharan African youth: A meta-analysis.Health Psychology, 37, 586-602. http://dx.doi.org/10.1037/hea0000604
Hagger, M. S., & Protogerou, C. (2018). Affect in the context of self-determination theory. In D. M. Williams, R. E. Rhodes, & M. T. Conner (Eds.), Affective determinants of health-related behavior. Oxford, UK: Oxford University Press.
Hagger, M. S., & Protogerou, C. (in press). Self-determination theory and autonomy support to change healthcare behavior. In A. Hadler, S. Sutton, & L. Osterberg (Eds.), Wiley handbook of healthcare treatment engagement. Chichester, UK: Wiley.
Protogerou, C., & Hagger, M. S. (2018). Development of checklist to assess quality in survey studies in psychology: An expert consensus approach. Manuscript in preparation.
Protogerou, C., & Hagger, M. S. (2017). Developing an integrated theoretical model of young peoples’ condom use in sub‐Saharan Africa. Australian Journal of Psychology, 69, 130-148. https://doi.org/10.1111/ajpy.12127
Protogerou, C., & Hagger, M. S. (2016). An integrated theoretical model of young peoples’ condom use in sub-Saharan Africa. European Health Psychologist, 18(S), 928.
Hagger, M. S., Chan, D.K.C., Protogerou, C., & Chatzisarantis, N.L.D. (2016). Using meta- analytic path analysis to test theoretical predictions in health behavior: An illustration based on meta-analyses of the theory of planned behavior. Preventive Medicine, 89, 154-161. doi:10.1016/j.ypmed.2016.05.020
Protogerou, C., Fleeman, N., Dwan, K., Richardson, M., Dundar, Y., & Hagger, M.S. (2015). Moderators of psychological intervention efficacy on depression and anxiety in cardiac surgery patients: A systematic review and meta-analysis. Behaviour Research and Therapy, 73, 151-164. doi:10.1016/j.brat.2015.08.004
Protogerou, C., Flisher, A. J., & Wild, L.G. (2014). Factors shaping condom use among South African university students: A thematic analysis. Journal of Psychology in Africa, 24, 215-224. doi:10.1080/14330237.2014.906081
Protogerou, C., & Johnson, B.T. (2014). Factors underlying the success of behavioral HIV- prevention interventions for adolescents: A meta-review. AIDS and Behavior, 18, 1847-1863. doi: 10.1007/s10461-014-0807-y
Protogerou, C., Flisher, A. J., Wild, L.G., & Aarø, L. E. (2013). Predictors of condom use in South African university students: A prospective application of the theory of planned behaviour. Journal of Applied Social Psychology, 43, E23-E36. doi: 10.1111/jasp.12039
Protogerou, C., Flisher, A. J. Aarø, L. E., & Mathews, C. (2012). The theory of planned behaviour as a framework for predicting sexual risk behaviour in sub-Saharan African youth: A critical review. Journal of Child and Adolescent Mental Health, 24, 15-35. doi: 10.2989/17280583.2011.621067
Protogerou, C., & Flisher, A. J. (2012). Bullying in schools. In A. van Niekerk, S. Suffla & M. Seedat (Eds.), Crime, violence and injury in South Africa: 21st century solutions for child safety (pp.119-133). Tygerberg: MRC-University of South Africa Safety & Peace Promotion Research Unit.