Research Interests
My primary research interests involve the study of quantitative models and methods for the analysis of data collected in psychological research. I am active in both methodological and applied research programs.

In the area of methodology, I am most interested in models and methods for the study of correlational data, especially factor analysis, structural equation modeling, and multilevel modeling. Of particular interest is the use of such methods for the analysis of longitudinal data, with a focus on individual differences in patterns of change over time.

I am also very active in an interdisciplinary research program in the field of psychoneuroimmunology, investigating relationships among brain, behavior, and autonomic, endocrine, and immune systems. A focus of many of our studies is the effect of stress on autonomic, endocrine, and immune function. New projects will investigate effects of stress on wound-healing. My role in these projects generally involves the application of sophisticated data analysis methods to data collected in these studies.

Publications
MacCallum, R. C., Kim, C., Malarkey, W. B., & Kiecolt-Glaser, J. K. (1997). Studying multivariate change using multilevel models and latent curve models. Multivariate Behavioral Research, 32, 215-253.

Robinson-Whelen, S., Kim, C., MacCallum, R. C., & Kiecolt-Glaser, J. K. (1997). Distinguishing optimism from pessimism in older adults: Is it more important to be optimistic or not to be pessimistic? Journal of Personality and Social Psychology, 64, 324-332.

Andersen, B. L., Farrar, W. B., Golden-Kreutz, D., Kutz, L. A., MacCallum, R. C., Courtney, M. E., & Glaser, R. (1998). Stress alters immune responses following surgical treatment for regional breast cancer. Journal of the National Cancer Institute, 90, 30-36.

Padgett, D. A., MacCallum, R. C., & Sheridan, J. F. (1998). Stress exacerbates age-related decrements in the immune response to an experimental influenza viral infection. Journal of Gerontology: Biological Sciences, 53A, B347-B353.

Kiecolt-Glaser, J. K., Page, G. G., Marucha, P. T., MacCallum, R. C., & Glaser, R. (1998). Psychological influences on surgical recovery: Perspectives from psychoneuroimmunology. American Psychologist, 55, 1209-1218.

MacCallum, R. C., Widaman, K. F., Zhang, S., & Hong, S. (1999). Sample size in factor analysis. Psychological Methods, 4, 84-99.

Glaser, R., Kiecolt-Glaser, J. K., Marucha, P. T., MacCallum, R. C., Laskowski, B. F., & Malarkey, W. B. (1999). Stress-related changes in proinflammatory cytokine production in wounds. Archives of General Psychiatry, 56, 450-456.

MacCallum, R. C., & Austin, J. T. (In press). Applications of structural equation modeling in psychological research. Annual Review of Psychology.

MacCallum, R. C., Browne, M. W., & Sugawara, H. M. (1996). Power analysis and determination of sample size for covariance structure modeling. Psychological Methods, 1, 130-149.

Kiecolt-Glaser, J. K., Newton, T., Cacioppo, J. T., MacCallum, R. C., Glaser, R., & Malarkey, W. B. (1996). Marital conflict and endocrine function: Are men really more physiologically affected than women? Journal of Consulting and Clinical Psychology, 64, 324-332.

Kiceolt-Glaser, J. K., Glaser, R., Cacioppo, J. T., MacCallum, R. C., Snydersmith, M., Kim, C., & Malarkey, W. B. (1997). Marital conflict in older adults: Endocrinological and immunological correlates. Psychosomatic Medicine, 59, 339-349.

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