Funding for this research was provided by:
Institute of Education Sciences (R305B090007)
Bill and Melinda Gates Foundation (N/A)
Article History
Received: 23 December 2019
Accepted: 27 October 2020
First Online: 16 November 2020
Ethics approval and consent to participate
: All procedures were in accordance with the ethical standards of the Portland State University institutional review board and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.
: Not applicable
: The authors declare that they have no competing interests.