Funding for this research was provided by:
Experimental Social Science Laboratory, University of California Berkeley ($1,000)
Schoenemann grant ($2,000)
Received: 29 May 2020
Accepted: 20 January 2021
First Online: 5 February 2021
Ethics approval and consent to participate
: The Oxford University and Hanoi School of Public Health ethics committees reviewed and approved the YLCS. Parents gave written consent in round 1 and subsequent verbal consent in later rounds. The UC Berkeley’s Committee for the Protection of Human Subjects reviewed and deemed that our study did not meet the threshold definition of “human subjects” according to Federal Regulations at 45 CFR 46.102(f); therefore, we did not need to obtain institution review board’s approval for this study.
: Not Applicable.
: The authors declare that they have no competing interests.