Funding for this research was provided by:
National Institute of Child Health and Human Development (R01HD48539, P50 HD052120, R21HD062834)
Institute of Education Sciences (R305A130517/R305A160404, R305A170163, R305B070074, R305H04013, R305F100027)
Text and Data Mining valid from 2017-09-15
First Online: 15 September 2017
Compliance with Ethical Standards
: Dr. Connor has an equity interest in Learning Ovations., a company that may potentially benefit from the research results. The terms of this arrangement have been reviewed and approved by the University of California, Irvine in accordance with its conflict of interest policies.
: All studies reported were approved by the Institutional Review Boards of the university at which the studies were conducted. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee 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.