“…While a variety of analytical tools have been designed to support understanding and planning in complex domains (e.g., Allen, Corpac, and Frisbie, 2006;Chappell et al, 2004;Chen and Lee, 2003;Langton and Das, 2007;Surdu and Kitka, 2008;Vester, 2007), the effectiveness of such tools is not often investigated in a systematic manner using the experimental research method (e.g., Lafond et al, 2012;Lerch and Harter, 2001).…”