Chu (2009) used a mixed method design to examine the outcome of an inquiry project completed by students in Hong Kong with the assistance of multiple educators. Chu's (2009) results show that the children were more motivated and academically successful compared to the control group.
Cindy Hmelo-Silver reviewed a number of reports on a variety studies into problem based learning.
Edelson, Gordin and Pea describe five significant challenges to implementing inquiry-based learning and present strategies for addressing them through the design of technology and curriculum. They present a design history covering four generations of software and curriculum to show how these challenges arise in classrooms and how the design strategies respond to them.