The document discusses hypotheses for improving an open social student model (OSM) by making it more fine-grained. It hypothesizes that a fine-grained OSM could increase self-awareness, help students find difficult concepts and set goals, de-incentivize competition by favoring guidance, and show students' knowledge at the concept level by connecting concepts as they are practiced in pairs. It also describes a concept map mastery grid that would group student data and concepts by topic and allow students to navigate exercises from concepts or the connections between them.

1. Hypotheses
• Allows to find "difficult" concepts, and set goals
• Increase awareness (at a finer grain)
• De-incentivate competition and favours guidance
Mastery Grids
(Open Social Student Model)
Exploring the Effects of Open Social Student Model Beyond Social Comparison
Concept-Map
(fine-grained OSM + Social Awareness features)
PAWS Lab
http://adapt2.sis.pitt.edu/wiki/Main_Page
• Designed to foster comparison and competition [1,4]
• Increase awareness (metacognition) [3]
• Increase amount and effectivity of work [1]
(paper accepted in UMAP 2015: The Value of Social: Comparing Open
Student Modeling and Open Social Student Modeling)
Hypotheses
• Increase awareness (at a finer grain) and self-assessment
performance
• Allows to find difficult concepts and to set goals
• De-incentivate competition and support better guidance
• Detailed OSM shows knowledge in concept level
• Connects concepts as the student practices pairs of concepts
• Mastery considers successful practices and the connections
(more connections means more practices together with other concepts)
• Navigate to exercises from concepts or edges
• Set concepts as goals and receive recommendations
• Group data shown within the user model
Selected
References
Towards
metacognition
support and
social guidance
Complement
with a fine-
grained OSM
concepts are
grouped by
topic
by clicking a node,
the connections are
shown
colors represent
mastery of the
student or the group
size represent
"popularity" (group
practices)
clck an edge to
access exercises
containing the pair
of concepts
[1] [2] [3] [4]
Problems
• Favors competition over effective guidance
• Guidance exists, but is conservative
(poster in AIED 2015: Off the Beaten Path: The Impact of Adaptive
Content Sequencing on Student Navigation in an Open Social Student
Modeling Interface)
• Lack a detailed view of knowledge [2], i.e. no support for
learning-oriented students
prototype v.1
Julio Guerra, jdg60@pitt.edu; Yun Huang, yuh43@pitt.edu; Roya Hosseini, roh38@pitt.edu; Peter Brusilovsky, peterb@pitt.edu
University of Pittsburgh – School of Information Sciences and University of Pittsburgh – Intelligent Systems Program1 2
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