Skip to main content
Dashboard wireframe

Designing Dashboards for Learning Analytics

New research! This page is under construction.

Presenting Helpers in MOOCs icon

Presenting Helpers in MOOCs

Students in Massive Open Online Courses often do not receive the help they need from their course discussion boards. A social recommendation algorithm can select appropriate helpers for a student's question, but how do we present these helpers in such a way as to encourage help seeking? I answer this question by applying Expectancy Value Theory in this field experiment.

Github link to ipynb

Python Processing MOOC Logfiles

Logfile processing was necessary in order to do the analysis from the Presenting Helpers in MOOCs experiment. Using Python and Gensim, I applied LDA to automatically assign topics to message board posts. I also designed a Python PANDAS script for descriptive statistics and plotting, as well as one and two way Analysis of Variance and Interaction analysis and graphs.

Github link to ipynb

Up/Downvoting and Targeted Email Prompts in a SPOC

Inspired by earlier research results showing that up/downvoting might have a negative effect on help seeking, we designed an experiment in a Small Private Online Course (SPOC) to examine up/downvoting's effect in a more traditional forum setting, and how targeted email prompts may be able to mitigate the potential negative effects.

Robot tutoring a student photo

Social Role and Social Presence of Pedagogical Robots for Help Seeking

While one-on-one human tutors are considered the gold standard of learning paradigms, why is it easier to seek help from computer tutors? Evaluation anxiety increases with heightened social presence and social role of the tutor, and in this experiment I investigate how social role (teacher or helper) and social presence (human or robot tutor) impacts help seeking in a lab experiment.

Screenshot of Socl

Posting to a Social Network for Maximum Community Response

In this log analysis, I apply machine learning and text mining techniques to understand what features of members' posts increase community response in Microsoft's interest sharing network, So.cl. I used C# to gather and clean the data and machine learning packages developed in Java.

Iron Man dialogue with codes

Operationalizing Sociolinguistics for Insights into Social Positioning

Linguistic behaviors in group work positions individuals in such a way as to increase or decrease their opportunities to engage and learn in educational settings. In this large body of work I present a multi-dimensional linguistic framework derived from sociolinguistics for identifying social positioning through language choices.

Photo of OurCS attendees

Co-organizing Opportunities for Undergraduate Research in Computer Science Conference

Starting in 2007, Carnegie Mellon's Women@SCS group has hosted the OurCS conference as a way to expose undergraduate women to the breadth of computer science research opportunities available to them. I began as an attendee in 2007 and helped organize the conference in 2011, culminating as a co-organizer of the poster session at the 2013 OurCS conference.

Pinwheels connected to an Arduino

Arduino for HCI in the Physical World

A series of smaller Arduino projects using simple mechanisms, LEDs, button inputs, servo and DC motors, resistors, H-bridges, etc. culminated in a term project using spinning pinwheels to indicate which of a collaborating pair is dominating the conversation.

Vector image of multi colored teapots

Tracing Images in Adobe Illustrator for Custom Clip Art and Research Graphics

In this tutorial I describe the basic skills for tracing images in Adobe Illustrator to produce your own custom clip art and diagrams.

Photo of a TARDIS applique on a wavy quilt

Spatial Reasoning Through Textiles

Spatial reasoning ability has been connected with success in Science, Technology, Engineering, and Math (STEM), and this relationship has been documented repeatedly. Spatial reasoning is part of the reason for why I became a computer scientist, and I have my suspicions about where I obtained the most practice in this skill: sewing.

Bat man virtual pet screenshot

Batman Virtual Pet

A simple "Virtual Pest" Javascript program from 2003 with emotional states and primitive regular expression parsing. ...not to mention some really sweet Microsoft Paint artwork!