“…Bayesian networks have been successfully applied to assess subskills and competencies in various domains, including physics problem solving (Martin & VanLehn, 1995;VanLehn & Martin, 1998), troubleshooting (Gitomer, Steinberg, & Mislevy, 1995), mixed-number subtraction (Mislevy, 1995), proportional reasoning (Beland & Mislevy, 1996), knowledge of English (Almond & Mislevy, 1999), dental hygiene (Mislevy, Steinberg, Breyer, & Almond, 2002), and student knowledge in computer-based instruction systems (e.g., Conati, Gertner, & VanLehn, 2002;Pardos, Heffernan, Anderson, & Heffernan, 2007;VanLehn & Niu, 2001). In recent years, interest in applying Bayesian networks in educational assessments seems to be growing (e.g., Desmarais & Pu, 2005;Heiner, Heffernan, & Barnes, 2007).…”