METTLE Developed By Stottler Henke Associates, Inc. Eric A. Domeshek domeshek@stottlerhenke. com Monitored by USAMRMC TATRC Mr. Harvey Magee magee@tatrc. org 1
Web-Based Training Decision-Making Diagnosis Treatment System Response Character Simulation Automated Tutoring Authorability Language & Forms Multimedia Interaction Rule-Based Behaviors Assessment/Tracking Hinting/Feedback Tutorial Annotations Authoring Tools Scripting Language Extensible Framework 2
Instructional Strategy Role-Play Scenarios Constrained Free-Play Any-Time/Anywhere Hints on Request Proactive Feedback After-Action Review Tutor-Initiative Dialog Probe for Reasoning Offer Critiques Curriculum Tree Linked Instruction Reference Materials Learn While Doing Coached Experience Rationale Discussion Facts in Context 3
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Character Behavior Rule (=> Test-Hemacoag-CSF (choose tests: CSF-cell-count-and-diff) (test "Order CSF Cell Count & Diff. " CSF-cell-count-diff 00: 01) : test (line Test-Image-CT-Head) : hint (say "Given a patient with possible meningitis, consider looking for signs of CNS mass lesion or midline shift. Most infections in the CNS will have a normal CT, but some will not. ") : what (say "Consider a CSF Cell Count and Differential test to suggest presence of infection. ") : how (say "Click the "Test" button and choose the "Hematology/Coagulation" menu item, then order a CSF Cell Count and Differential test. ") : why (say "The presence of WBCs in CSF would strongly suggest an infection in the CNS. ") : nope (say "If you suspect the possibility of meningitis, you should not collect CSF before doing a Head CT CT in this case. This patient has a somewhat abnormal mental status, and as such needs a CT prior to LP. Some young patients with normal neuro exam and mental status may have LP without CT, though this remains an area of discussion in the literature. ") ) 5
Major Features of METTLE Multi-modal character Simulated interaction with characters interaction (patients and medical team-mates) Simulated dialogs Language-based interaction, student initiative and character initiative Automated Tutor tracks/assesses student actions assessment tied to curriculum and student model Tutor response Tutor offers hints, feedback, dialog, scorecard, and reference materials Authoring tools Scenario scripting with reusable assets and web-based authoring tools Reusable medical Medical content, including interview content questions, and test order forms General framework Retargetable for range of character interaction/decision-making apps. 6
Architecture 10. METTLE Runtime Servlet Authoring Servlet 9. Enact Structures Enact Interpreter 8. Discuss Structures Discuss Interpreter 7. GRAIN Structures GRAIN Interpreter 6. Interpreter Test Interpreter Action Interpreter 5. Interaction SVG Interaction Concept HTML Forms 4. Concept Structures Concept HTML Widgets 3. Registry Structures Editable HTML Widgets 2. Web Server Config. Servlet Framework 1. Utility XML Processing Text Processing 7
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