“…We first introduce important features that an online platform should have to support research on collaboration and why most existing tools do not meet the needs. The findings are primarily based on our research on computer-supported collaborative learning and assessment (Andrews et al, 2017;Flor, Yoon, Hao, Liu, & von Davier, 2016;Halpin, von Davier, Hao, & Liu, 2017;Hao, Liu, von Davier, Kyllonen, & Kitchen, 2016;Liu, Hao, von Davier, Kyllonen, & Zapata-Rivera, 2015;von Davier & Halpin, 2013).…”