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A comparison of response rates in the English Longitudinal Study of Ageing and the Health and Retirement Study [PDF]
, 2011 Survey response rates are an important measure of the quality of a survey; this is true for both longitudinal and cross-sectional surveys. However, the concept of a response rate in the context of a panel survey is more complex than is the case for a ...
Scholes, Shaun +3 more
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Handling attrition and non-response in longitudinal data [PDF]
, 2009 oai:edrev.asu.edu:article/21Procedures for handling attrition and missing data in longitudinal studies are discussed. A multiple imputation (MI) strategy is developed that can be applied to complex multilevel data.
Goldstein, H, Goldstein, Harvey
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Associations between Cardiovascular Signal Entropy and Cognitive Performance over Eight Years
Entropy, 2021 In this study, the relationship between non-invasively measured cardiovascular signal entropy and global cognitive performance was explored in a sample of community-dwelling older adults from The Irish Longitudinal Study on Ageing (TILDA), both cross ...
Silvin P. Knight +7 more
doaj +1 more source
Effects of a Time-Limited Push-to-Web Incentive in a Mixed-Mode Longitudinal Study of Young Adults
Survey Research Methods, 2023 This paper describes the impact of a time-limited push-to-web incentive on response rate and sample composition in a mixed-mode longitudinal study of young adults in the UK.
Darina Peycheva +3 more
doaj +1 more source
Residential relocations and academic performance of Australian children: A longitudinal analysis [PDF]
, 2018 The family and residential environments are critical to children’s wellbeing and, hence, residential change can affect children’s developmental outcomes. In this research, we study the associations between residential relocations and academic performance
Vidal, Sergi +4 more
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Seminars in Hematology, 2022 In hundreds of patients worldwide, vaccination against COVID-19 with adenovirus vector vaccines (ChAdOx1 nCoV-19; Ad26.COV2.S) triggered platelet-activating anti-platelet factor 4 (PF4) antibodies inducing vaccine-induced immune thrombotic thrombocytopenia (VITT).
Linda Schönborn, Andreas Greinacher
openaire +2 more sources
Alzheimer’s Research & Therapy, 2021 Background Cognitive reserve is most commonly measured using socio-behavioural proxy variables. These variables are easy to collect, have a straightforward interpretation, and are widely associated with reduced risk of dementia and cognitive decline in ...
R. Boyle +8 more
doaj +1 more source
Frontiers in Human Neuroscience, 2020 Background: A shift towards the dynamic measurement of physiologic resilience and improved technology incorporated into experimental paradigms in aging research is producing high-resolution data.
John D. O’Connor +9 more
doaj +1 more source
Longitudinal validity of spirometers - a challenge in longitudinal studies
Swiss Medical Weekly, 2005 Pulmonary function testing (PFT) in longitudinal studies involves the repeated use of spirometers over long time periods. We assess the comparability of PFT results taken under biologic field conditions using thirteen certified devices of various technology and age. Comparability of measurements across devices and over time is relevant both in clinical
Künzli, N. +8 more
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ALS longitudinal kickers [PDF]
AIP Conference Proceedings, 1992 This paper discusses the coupled‐bunch instability and how it applies to the ALS accelerator. The longitudinal ALS kicker is part of the bunch‐to‐bunch feedback system planned to control coupled‐bunch instabilities in the ALS. The mechanical features of the kicker are described, and the analytic tools developed to aid in the design are discussed.
openaire +4 more sources