Funding for this research was provided by:
Kaplan Early Learning Company
Text and Data Mining valid from 2019-07-18
First Online: 18 July 2019
Compliance with ethical standards
: Dr. Donna Karno and Dr. Beth Hatcher declares that they have no conflict of interest. Kaplan Early Learning Company provided the multi-touch table for the research, but did not become involved beyond furnishing the table.