Table 1 Inventory of ITS messages aggregated from ITS design teams
From: ElectronixTutor: an intelligent tutoring system with multiple learning resources for electronics
Learner performance messages | ||
|---|---|---|
 Completed | User completed a learning task was completed and a certain score (0–1) was returned. |  |
 KnowledgeComponentScore | User demonstrated mastery of a specific knowledge component on a task (0–1) |  |
 CompletedAllSteps | User completed a certain percentage of all steps of a task (0–1) |  |
 CompletedStep | User completed a specific step of a task (0–1 for quality of step) |  |
 AnswerSemanticMatch | User’s answer matched the ideal to a certain quality level (0–1) |  |
 Misconception | User demonstrated a known misconception |  |
Help messages | ||
 TaskSupport | User received a certain overall level of help on a task (0–1) | |
 TaskHelp | User received some kind of help on a certain task step | |
 TaskHint | User received a hint on a certain task step | |
 TaskFeedback | User received feedback (positive, negative, or neutral) on a certain step | |
 TaskDecomposition | User decomposed a task into subparts to complete (used only by the LearnForm ITS) | |
 TaskHelpCount | Number of times user requested help in a session (summary, for systems that cannot report individual events) | |
User interface communication messages | ||
 Presented | Information was presented to the user by the system | |
 SelectedOption | User selected a given option in the system | |
 SubmittedAnswer | User submitted a certain answer (e.g., text, option choice) | |
System control messages | ||
 Loaded | The task loaded successfully and is running | |
 Heartbeat | The task is still running and has not frozen or otherwise stopped | |
Micro-level metrics messages | ||
 WordsPerSecond | System estimated user input text as a given words per second | |
 ActionsPerSecond | System estimated user input actions per second | |
 Persistence | System estimated persistence on a given task | |
|  |  Impetuousness | System estimated impetuousness (e.g., guessing) on a task |
|  |  GamingTheSystem | System estimated gaming the system on a task |
|  |  WheelSpinning | System estimated wheel spinning on a given task |
|  |  Confusion | System estimated user confusion on a given task |
|  |  Disengagement | System estimated user disengagement on a given task |