==== Front Innov Aging Innov Aging innovateage Innovation in Aging 2399-5300 Oxford University Press US 10.1093/geroni/igaa057.1877 igaa057.1877 Abstracts Session 5465 (Symposium) AcademicSubjects/SOC02600 Becoming More Open: Increasing Rigor and Reproducibility of Gerontological Science Taylor Brad Chair Lee Lewina Co-Chair Isaacowitz Derek Discussant 2020 16 12 2020 16 12 2020 4 Suppl 1 Program Abstracts from The GSA 2020 Annual Scientific Meeting “Turning 75: Why Age Matters”567 568 © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.2020This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.Abstract “Open science” refers to a collection of practices with the broad goal of increasing the transparency and reproducibility of scholarly research. The purpose of this symposium is to illustrate the application of open science practices to gerontological research and address barriers to adopting such practices. Drawing from his experiences in leading a research network that conducts integrative analysis of longitudinal aging studies (IALSA), Hofer will describe challenges posed by multiple sources of heterogeneity in conducting coordinated analyses, and ways of handling these challenges to maximize reproducibility. Next, Mroczek will illustrate these issues by providing two examples of coordinated analyses. This talk will highlight design features that promote openness and transparency in conducting research on longitudinal data. Third, Lodi-Smith will provide practical guidance and examples on preregistering complex projects, strategies for transparently reporting deviations from preregistrations, considerations in sharing sensitive data, and tips on transparent documentation of analysis code. She will also emphasize the pedagogical value of preregistration. Finally, Seaman will describe ongoing efforts to establish open science practices as the default in her laboratory, with the goal of providing a model for both junior and more established researchers wanting to build transparency into their research practices. Discussant Isaacowitz, editor for the Journal of Gerontology, Series B: Psychological Sciences, will evaluate the presentations from the lens of how journals can encourage more transparent and replicable scientific practices.