ABSTRACT

Intraindividual variability (IIV) of human development and behavior across the entire life-span is explored in this new book. Leading researchers summarize recent findings on the extent, role, and function of IIV in human development with a focus on how, when, and why individuals change over time. The latest theoretical, methodological, and technological advances are reviewed. The book explores the historical and theoretical background and challenges of IIV research along with its role and function in childhood, adolescence, and adulthood. Edited to maximize consistency and accessibility, each chapter includes an introduction and a review of the research and most explore future directions, new theoretical developments, and conclusions and implications. Readers are shown that by focusing on the individual as a unit of analysis across different time scales, conditions, and situations, researchers can effectively demonstrate behavioral and developmental regularities at different points of the life-span. As such this book is a must have for anybody interested in IIV research.

The book explores:

-New designs and methods for the analysis of intensive repeated measures data.

-The importance of real-time data for more time sensitive and ecologically valid measurements.

-The role and function of intraindividual variability in behavior and development across the life-span -- from infancy to later life.

-Numerous examples of how intraindividual variability research is conducted.

-Topics and findings that are commonly treated in disparate bodies of literature from various disciplines.

Part 1 provides a historical, conceptual, and methodological overview of the study of intraindividual variability (IIV). IIV during childhood and adolescence and its application in the investigation of development of language acquisition, infant-parent interactions, development of motor skills, cognitive development, mood regulation, and identity development are examined in Part 2. Part 3 focuses on IIV during adult development, including its use in neuropsychological functioning and attention and in personality development and mood regulation. IIV in the context of adults’ health behavior is also reviewed. Part 4 examines the key issues and challenges of IIV research in human development such as whether IIV in adult development is an indicator of vulnerability or resilience, the association between short-term IIV and long-term developmental change, and multiple time-scale design and analysis. The volume concludes with a look at the future of intraindividual variation analysis.

Intended for advanced students and researchers in developmental psychology across the life-span, social, personality, and health psychology, as well as sociology, family studies, gerontology, education, and medicine, interested in intraindividual variability of behavior and its role in human development, this book also serves as a text for graduate courses on longitudinal analysis, multilevel modeling, and/or (advanced) data analysis offered in these departments. Knowledge in human development or life course sociology and graduate-level statistics is recommended.

Foreword J.R. Nesselroade Part 1: Historical and Conceptual Overview 1. A Brief Historical Overview on Intraindividual Variability Research Across the Life-span M. Diehl, K. Hooker, M.J. Sliwinski 2. Intraindividual Variability Across the Life-span: Moving Towards Computational Developmental Science N. Ram, L. Gatzke-Kopp, D. Gerstorf, M. Coccia, J. Morack, P.C.M. Molenaar Part 2: Intraindividual Variability and Development During the Early Life-span 3. The Nature and Meaning of Intraindividual Variability in Development in the Early Life-span M. van Dijk, P. van Geert 4. Intraindividual Variability in the Development of Motor Skills in Childhood K.E. Adolph, W.G. Cole, B. Verereijken 5. The Role of Intraindividual Variability in Learning and Cognitive Development M.W. Alibali, P.G. Sidney 6. Intraindividual Variability in Mood Experience and Mood Regulation in Childhood and Adolescence L.B. Shomaker, S.A. Reina 7. Intraindividual Variability in Self-Representations in Adolescence S.D. Gest, L.E. Molloy, N. Ram Part 3: Intraindividual Variability and Development Across the Adult Life-span 8. Intraindividual Variability and Neuropsychological Functioning Across the Adult Life-span S. Vandermorris, J.E. Tan 9. Intraindividual Variability in Attention Across the Adult Life-span A.A.M. Bielak, K.J. Anstey 10. Intraindividual Variability in Adult Personality Development E.E. Noftle, W. Fleeson 11. Intraindividual Variability in Mood and Mood Regulation in Adulthood A.D. Ong, A.J. Zautra 12. Intraindividual Variability in the Context of Adults’ Health Behavior C. Hoppmann, J.C. Lay, S. Shayanfar Part 4: Key Issues of Intraindividual Variability Research 13. Intraindividual Variability – An Indicator of Vulnerability or Resilience in Adult Development and Aging? S.W. S. MacDonald, R.S. Stawski 14. Intraindividual Variability and Covariation Across Domains in Adulthood and Aging: Contributions for Understanding Behavior, Health, and Development R.S. Stawski, J. Smith, S.W. S. MacDonald 15. The Association Between Short-Term Intraindividual Variability and Long-term Developmental Change P. Rast, S.M. Hofer 16. Psychometric Properties of Micro-longitudinal Assessments: Between- and Within-person Reliability, Factor Structure, and Discriminant Validity of Daily Cognitive Interference J. Mogle, D.M. Almeida, R.S. Stawski 17. Multiple Time-Scale Design and Analysis:  Pushing Towards Real-Time Modeling of Complex Developmental Processes N. Ram, M. Diehl 18. Intraindividual Variability in the Medical and Rehabilitation Sciences C.S. McCrae, N. Dautovich, K. Shoji, K. Vatthauer Part 5: Conclusion 19. The Future of Analysis of Intra-Individual Variation P.C.M. Molenaar