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Article History

Received: 5 July 2018

Accepted: 26 April 2019

First Online: 28 May 2019

Ethics approval and consent to participate

: The study received ethical approval from the Stanford University Institutional Review Board on August 25, 2014, approval number 315130349 (Panel: 2). This study also received ethical approval from the Maseno University Ethics Review Committee. MUERC No.: MSU/DRPC/MUERC/000099/14.The study is registered in the American Economic Association’s Registry for Randomized Controlled Trials; Trial Registry Number (TRN): AEARCTR-0000662; Date of Registry: April 14, 2015.Maseno University Ethics Review Committee (MUERC) required written informed consent of the school administrator, and waived the need for parental consent. Trained enumerators approached the randomly selected schools, asked to meet with the head teacher to explain the study and sought consent for the school to enroll in the study. The consent form included information on purpose of the study, intervention delivery, interviews and observations to be made at the school, follow-up visits, benefits and risk from the study, confidentiality, voluntary nature of participation, and contact details of research staff. The Maseno Universty Ethics Review Committee approved of the procedures for this study. MUERC No.: MSU/DRPC/MUERC/000099/14.

: Not applicable. This manuscript does not include details, images, or videos relating to an individual person.

: The authors declare that they have no competing interests.

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