Funding for this research was provided by:
Institute of Education Sciences (R324A110107)
Institute of Education Sciences (R305A130701)
National Institute of Mental Health (T32 MH019545-23)
Institute of Education Sciences (R305A150221)
Spencer Foundation
Article History
First Online: 12 February 2016
Compliance with Ethical Standards
: All procedures 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.
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all participants included in the study.