About the Authors

Claire M. A. Haworth

Claire.Haworth@bristol.ac.uk

Affiliation MRC Integrative Epidemiology Unit, School of Experimental Psychology & School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom

S. Katherine Nelson

Affiliation Department of Psychology, Sewanee: The University of the South, Sewanee, United States of America

Kristin Layous

Affiliation Department of Psychology, University of California Riverside, Riverside, United States of America

Kathryn Carter

Affiliation Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom

Katherine Jacobs Bao

Affiliation Department of Psychology, University of California Riverside, Riverside, United States of America

Sonja Lyubomirsky

Affiliation Department of Psychology, University of California Riverside, Riverside, United States of America

Robert Plomin

Affiliation Social, Genetic and Developmental Psychiatry Centre, King’s College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CMAH SKN KL KC KJB SL. Performed the experiments: CMAH KC. Analyzed the data: CMAH SKN. Wrote the paper: CMAH SKN KL KC KJB SL RP.