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A Robustness Report of "Do We Become More Lonely With Age? A Coordinated Data Analysis of Nine Longitudinal Studies"

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  • Pawel, Samuel
  • Kutlar, Luisa
  • Knöpfle, Philipp

Abstract

The original study by Graham et al. (2024) investigated whether loneliness changes with age across the adult lifespan, synthesizing data from nine longitudinal studies via meta-analyses. The primary fi nding was that loneliness follows a U-shaped trajectory: decreasing from young adulthood to midlife and increasing in older adulthood (estimated Age2 regression coeffi cient of 0.07 with 95% confi dence interval from 0.02 to 0.13, age centered at 60 years). We computationally reproduced the reported meta-analyses. We assessed the robustness of the main fi nding with respect to alternative analytic decisions regarding the estimation of the heterogeneity variance and inclusion/exclusion of individual studies. We fi nd that the main claim from Graham et al. (2024) is robust regarding these decisions.

Suggested Citation

  • Pawel, Samuel & Kutlar, Luisa & Knöpfle, Philipp, 2025. "A Robustness Report of "Do We Become More Lonely With Age? A Coordinated Data Analysis of Nine Longitudinal Studies"," I4R Discussion Paper Series 224, The Institute for Replication (I4R).
    • Handle: RePEc:zbw:i4rdps:224
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