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Research Methodology

Longitudinal design considerations to optimize power to detect variances and covariances among rates of change: Simulation results based on actual longitudinal studies

Rast, P., & Hofer, S. M. (in press). Longitudinal design considerations to optimize power to detect variances and covariances among rates of change: Simulation results based on actual longitudinal studies. Psychological Methods
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Toward an integrative science of lifespan development and aging

Hofer, S. M., & Piccinin, A. M. (2010). Toward an integrative science of lifespan development and aging. Journals of Gerontology: Psychological Sciences, 65B, 269-278.

). On the confounds among retest gains and age-cohort differences in the estimation of within-person change in longitudinal studies: A simulation study

Hoffman, L., Hofer, S. M., & Sliwinski, M. J. (2011). On the confounds among retest gains and age-cohort differences in the estimation of within-person change in longitudinal studies: A simulation study. Psychology and Aging, 26, 778-791.

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Modeling individual differences in withinperson variation of negative and positive affect in a mixed effects location scale model using BUGS/JAGS

Rast, P., Hofer, S. M., & Sparks, C. (in press). Modeling individual differences in within-person variation of negative and positive affect in a mixed effects location scale model using BUGS/JAGS. Multivariate Behavioral Research.

Evaluating the interdependence of aging-related changes in visual and auditory acuity, balance, and cognitive functioning

Hofer, S. M., Berg, S., & Era, P. (2003). Evaluating the interdependence of aging-related changes in visual and auditory acuity, balance, and cognitive functioning. Psychology and Aging, 18, 285-305.

Cognitive change as conditional on age heterogeneity in onset of mortality-related processes and repeated testing effects

Thorvaldsson, V., Hofer, S. M., Hassing, L., & Johansson, B. (2008). Cognitive change as conditional on age heterogeneity in onset of mortality-related processes and repeated testing effects. In S. M. Hofer and D. F. Alwin (Eds.), Handbook on Cognitive Aging: Interdisciplinary Perspectives (pp. 284-297). Thousand Oaks: Sage Publications.
 
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Effects of repeated testing in a longitudinal age-homogeneous study of cognitive aging

Thorvaldsson, V., Hofer, S. M., Berg, S. & Johansson, B. (2006). Effects of repeated testing in a longitudinal age-homogeneous study of cognitive aging. Journal of Gerontology: Psychological Sciences, 61B, P348-P354.
 
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Modeling retest and aging effects in a measurement burst design

Sliwinski, M. J, Hoffman, L., & Hofer, S. M. (in press). Modeling retest and aging effects in a measurement burst design. In Newell, K.M & Molenaar, P.C.M. (Eds.), Individual pathways of change in learning and development. Washington DC, American Psychological Association.
 
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Evaluating convergence of within-person change and between-person age differences in age-heterogeneous longitudinal studies

Sliwinski, M. J., Hoffman, L., & Hofer, S. M. (in press). Evaluating convergence of within-person change and between-person age differences in age-heterogeneous longitudinal studies. Research on Human Development.
 
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Longitudinal studies in aging research

Schaie, K. W., & Hofer, S. M. (2001). Longitudinal studies in aging research. In J. E. Birren & K. W. Schaie (Eds.), Handbook of the psychology of aging (5th Edition; pp. 53-77). San Diego: Academic Press.
 
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