“…As noted above, self-regulation plays an active role in illstructured problem solving in PBL, which requires problem solvers to constantly monitor, evaluate, and regulate their problem-solving processes until a feasible, viable, and defensible solution is reached (Ge & Land, 2003;Lynch, Ashley, Pinkwart, & Aleven, 2009). Self-regulation "is an active, constructive process whereby learners set goals for their learning and then attempt to monitor, regulate, and control their cognition, motivation, and behavior, guided and constrained by their goals and the contextual features in the environment" (Pintrich, 2000, p. 453).…”