Students' activities in game/scenario-based tasks (G/SBTs) can be characterized by a sequence of time-stamped actions of different types with different attributes. For a subset of G/SBTs in which only the order of the actions is of great interest, the process data can be well characterized as a string of characters (i.e., action string) if we…

Even as the Internet and i-devices have changed so many parts of people's lives, educational testing has not changed substantially in decades. Though researchers and educators have for years raised ample concerns about existing tests, assessments have barely evolved. Further, despite years of expanded testing and greater school accountability,…