About the Authors

Amy Christensen

Affiliation Leonard Davis School of Gerontology, University of Southern California, Los Angeles, California, United States of America

Christian J. Pike

cjpike@usc.edu

Affiliation Leonard Davis School of Gerontology, University of Southern California, Los Angeles, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceptualization: CP. Data curation: CP AC. Formal analysis: AC. Funding acquisition: CP. Investigation: AC. Methodology: CP AC. Project administration: CP AC. Resources: CP. Supervision: CP. Validation: CP. Visualization: CP AC. Writing – original draft: CP AC. Writing – review & editing: CP AC.