Abstract
Distinguishing within-person from between-person variability in personality and well-being constructs is important for understanding their stability and change over varying periods, from moments to decades. Regardless of whether the variation is over days or years (or seconds to decades), it is important for researchers and practitioners alike to comprehend what it means for a person to vary from himself or herself, and what it means for one person to vary from another. The current study gives two examples of within- and between-person. The first example involves two major personality traits, extraversion and neuroticism, over a 12-year longitudinal period. The second example involves negative affect in a one-week daily diary study. Researchers should be aware of the within vs. between distinction because it is at the heart of important theoretical problems in ageing and development. Practitioners should appreciate it because it can distinguish between long-term clinical trends and short-term fluctuations.
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He received his Bachelor’s Degree from Loyola University Chicago and his Ph.D. from Boston University. He also completed an NIMH postdoctoral fellowship at the Survey Research Center of the Institute for Social Research at the University of Michigan.
He is also Assistant Professor of Epidemiology and Biostatistics, Boston University School of Public Health. He received his Bachelor’s Degree from Emory University and his Ph.D. from Penn State University.
He received his Bachelor’s Degree from California State University, Northridge and his Ph.D. from the University of Victoria. He also completed an NIMH postdoctoral fellowship at the Survey Research Center of the Institute for Social Research at the University of Michigan. In January, 2004, he will join the faculty of Human Development and Family Studies at Penn State University.
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Mroczek, D.K., Spiro, A. & Almeida, D.M. Between- and within-person variation in affect and personality over days and years: How basic and applied approaches can inform one another. Ageing International 28, 260–278 (2003). https://doi.org/10.1007/s12126-002-1007-z
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DOI: https://doi.org/10.1007/s12126-002-1007-z