Melendez-Torres, G. J. http://orcid.org/0000-0002-9823-4790
Allen, Elizabeth
Viner, Russell
Bonell, Chris
Funding for this research was provided by:
Public Health Research Programme (12/153/60)
Education Endowment Foundation
Article History
Accepted: 1 April 2021
First Online: 21 April 2021
Declarations
:
: The trial was approved by the University College London ethics committee (ref. 5248/001). The study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments.
: Written, informed consent was sought from head teachers for allocation and intervention, and from individual students for survey participation. Parents were informed of the study and could withdraw their children from research if they wished.
: The authors declare that they have no conflict of interest.