Volume 93, Issue 2 p. e222-e236
EMPIRICAL ARTICLE

Daily fluctuations in young children’s persistence

Julia A. Leonard

Corresponding Author

Julia A. Leonard

Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Department of Psychology, Yale University, New Haven, Connecticut, USA

Correspondence

Julia Leonard, Department of Psychology, Yale University, New Haven, CT 06511 USA.

Email: [email protected]

Search for more papers by this author
David M. Lydon-Staley

David M. Lydon-Staley

Annenberg School for Communication, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Department of Bioengineering, School of Engineering & Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Search for more papers by this author
Sophie D. S. Sharp

Sophie D. S. Sharp

Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Search for more papers by this author
Hunter Z. Liu

Hunter Z. Liu

Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Search for more papers by this author
Anne T. Park

Anne T. Park

Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Search for more papers by this author
Danielle S. Bassett

Danielle S. Bassett

Department of Bioengineering, School of Engineering & Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Department of Electrical & Systems Engineering, School of Engineering & Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Department of Physics & Astronomy, College of Arts & Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Santa Fe Institute, Santa Fe, New Mexico, USA

Search for more papers by this author
Angela L. Duckworth

Angela L. Duckworth

Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Search for more papers by this author
Allyson P. Mackey

Allyson P. Mackey

Department of Psychology, University of Pennsylvania, Philadelphia, Pennsylvania, USA

Search for more papers by this author
First published: 14 December 2021
Citations: 5

Funding information

This research was supported by a Jacobs Foundation Early Career Research Fellowship to A.P.M., NIDA (1R34DA050297-010) to A.P.M, a University of Pennsylvania MindCORE Postdoctoral Fellowship to J.A.L., and NIDA (K01DA047417) to D.M.L.

Abstract

Children's behavior changes from day to day, but the factors that contribute to its variability are understudied. We developed a novel repeated measures paradigm to study children's persistence by capitalizing on a task that children complete every day: toothbrushing (N = 81; 48% female; 36–47 months; 80% white, 14% Multiracial, 10% Hispanic, 2% Asian, 1% Black; 1195 observations collected between January 2019 and March 2020). Children brushed longer on days when their parents used more praise (d = .23) and less instruction (d = −.22). Sensitivity to mood, sleep, and parent stress varied across children, suggesting that identifying the factors that shape an individual child's persistence could lead to personalized interventions.

CONFLICT OF INTEREST

The authors declare no competing interests.

DATA AVAILABILITY STATEMENT

All data, materials, and preregistrations are available on the Open Science Framework: https://osf.io/vr2du/.