Developing a Methodological Research Program for Longitudinal Studies Proceedings of a Workshop—in Brief (2017) / Chapter Skim
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Developing a Methodological Research Program for Longitudinal Studies: Proceedings of a Workshop--in Brief
Developing a Methodological Research Program for Longitudinal Studies: Proceedings of a Workshop--in Brief
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Graham Kalton (Westat) underscored that there are several different types of longitudinal studies, including cohort studies of individuals (such as the National Longitudinal Surveys or the National Health and Aging Trends Study)
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individualwhich new or continuing research is needed to inform level trajectories. the design of longitudinal surveys: research on how to obtain high initial response rates and maintain high re- Freedman said that research is needed to better undertention rates; the effects of changing modes from one stand how wider periodicities affect costs, including wave to another on longitudinal analyses; ways of re- interviewer recruiting, training, and retention costs, ducing respondent burden; and opportunities for the and the costs associated with sample member tracking use of administrative records and contextual variables and contacts between follow-ups.
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Although there are major challenges One of the workshop sessions focused on the growing associated with the scalability of using remote-sensing area of methodological research to identify and evalu- technologies in large longitudinal studies, it is not imate new sources and forms of data that can be linked possible to do, particularly for studies that begin with to self-reported survey data. Pamela Herd (University an in-person interview.
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A related question is how to increase the reported that he and his colleagues used response use of new technologies that facilitate additional forms time on the Montreal Cognitive Assessment screening of measurement in longitudinal surveys, such as acceltest, but future research could evaluate whether other erometers or global positioning systems. Couper said sets of survey questions could also be used to model that an underlying goal has to be to develop research cognitive decline.
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Specifically, cisions about how to vary activities in order to maxiNCES was able to substantially reduce nonresponse mize response rates within the fixed budget. bias by focusing on nonrespondents who had a high The initial Understanding Society experience with inlikelihood of contributing to nonresponse bias and troducing mixed-mode data collection was that the had a high response propensity score, and by identify variable costs declined modestly, but the fixed costs ing the incentive amount ($45)
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Finally, an important question that the public release of data. A third set of metrics for vari- emerged from the workshop is whether it would be able costs could come from paradata on contact at- possible to develop a vehicle dedicated to methodtempts and successes; incentive protocol and payouts; ological research, similar to the Innovation Panel of the response rate and level-of-effort effects by incentives, Understanding Society Study.
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important. Increasingly more complicated data linkages In terms of the usefulness of a potential panel set call for a better understanding of the factors that influ- aside for methodological research, O'Muircheartaigh ence people's willingness to provide consent, and in a agreed with Jäckle that this would be most useful if the broader sense of the barriers to participation, as illus test panel mirrors the design of the main survey.
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REVIEWERS: To ensure that it meets institutional standards for quality and objectivity, this Proceedings of a Workshop -- in Brief was reviewed by Maria Glymour, School of Medicine, University of California, San Francisco; Richard Jones, Department of Psychiatry and Human Behavior, Brown University; and Stephen Smith, NORC at the University of Chicago. Kirsten Sampson Snyder, National Academies of Sciences, Engineering, and Medicine, served as review coordinator.
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