Category: my research

Design Challenges in Pedagogical Agent Implementations

When creating pedagogical agents for use in online learning environments, designers face numerous challenges. These range from technological (e.g., How do I ensure proper lip-synching when speech is generated in real-time?) to pedagogical (e.g., How do I ensure that the agent provides scaffolding that is appropriate to the students’ needs at a given point in time?) to social (e.g., How can I develop an agent that is sensitive to students’ varying social needs?). While designers deal with these questions frequently and decide on what we deem to be the best approaches to tackle them, we don’t often share the our design thinking with others.

My colleagues and I (Gulz, Haake, Silvervarg, Sjoden, Veletsianos), have just published a book chapter that deals with this issue. In this chapter we discuss design challenges we faced when developing a pedagogical agent, and the steps we took, and decisions we made to tackle those challenges. The challenges we discuss are the following:

  1. how do we manage learners’ expectations of the agent’s knowledge and social profile,
  2. how do we deal with learners’ who engage in off-task conversations with an agent, and
  3. how do we manage abusive comments directed to the agent?

These issues were observed in studies that both Agneta Gulz and myself have independently conducted in the past, and sharing our design thinking with the community sounded like a great idea – hence the publication. A copy of this publication (1.7MB pdf) is provided below:

Gulz, A., Haake, M., Silvervarg, A., Sjoden, B., & Veletsianos, G. (2011). Building a Social Conversational Pedagogical Agent: Design Challenges and Methodological approaches. In Perez-Marin, D., & I. Pascual-Nieto (Eds.), Conversational Agents and Natural Language Interaction: Techniques and Effective Practices (pp. 128-155). IGI Global.

As always, I’d love to hear your input!

Student Adventure Learning Project: Why We Don’t Teach

This is the second entry on student projects developed during my Spring 2011 Adventure Learning course. Students in this class  developed online learning environments using the Adventure Learning approach, and one team focused their project on teachers who leave the profession and examined their reasons for doing so. I particularly enjoyed this project because (a) it informs an important and pertinent topic, and (b) it departs from traditional adventure learning projects, treating “adventure” as a location-independent activity. What follows is a description of the project, largely based on student text:

Video from student project depicting one of the project findings: Studies have shown that one of the major reasons
that teachers leave the profession is related to what they consider to be bureaucratic or administrative issues.

Why We Don’t Teach is an Adventure Learning project intended to give policy makers, administrators, and others interested in the current state of public education in the United States an understanding of why teachers are leaving the profession. It has recently been shown that the shortage of quality teachers we are facing as a nation stems from problems of retention rather than problems of recruitment. According to one study, nearly 50% of all teachers leave the field within their first five years of teaching.

Why is this happening? While this topic is complex with many factors that confound easy remediation, the Why We Don’t Teach environment offers resources and curriculum (e.g., Session 1, Session 2, Session 3) for exploring the issue both systemically and from the perspective of teachers who have left the profession.

Supercomputers and Open Science

The University of Texas at Austin, along with numerous partners, has dedicated Lonestar 4, its latest supercomputer, to the scientific community for research purposes. Researchers around the world have already been using UT’s supercomputers for scientific exploration, and I was really excited to find out that social scientists have increasingly been inquiring about using the supercomputer for their data needs. To put the system’s capabilities in context, Lonestar 4 encompasses:

  • 302 teraflops peak performance
  • 44.3 terabytes total memory
  • 1.2 petabytes raw disk

One of my research strands is focusing on educator and researcher participation in online networks (which is a topic closely related to digital scholarship), and I am in the process of investigating the opportunities provided by supercomputer to understand various facets of digital scholarship. Incidentally, I came across the following TED video yesterday that touches upon a similar idea, namely scientists participation in online spaces with an eye towards embracing open science and enhancing research outcomes and processes:

Emerging Technologies and Transformative Learning

I’m excited to announce the publication of a special issue that Brendan Calandra and I did for Educational Technology, focusing on the complex relationship(s) between emerging technologies and transformative learning [Educational Technology, 51(2)]. The  issue is in part the result of a conversation we have had over the last two years about emerging technologies and their potential to foster unique types of learning. We have found that these unique types of learning to be qualitatively different than goal-based and performance-oriented learning, and to share many characteristics with Jack Mezirow’s original notion of transformative learning such as disorienting dilemmas, critical reflection, dialogue, and changes to frames of reference (1978, 1991, 1997). Our suggestions for future work include further examination of how transformative learning might be negotiated in technology-enhanced contexts, and how emerging technologies might foster and influence transformative outcomes.

Here is a copy of the introduction to the special issue: Emerging Technologies and Transformative Learning.

The papers for this issue are as follows:

Teaching in an Age of Transformation: Understanding Unique Instructional Technology Choices which Transformative Learning Affords
Kathleen P. King

Transformative Learning Experience: Aim Higher, Gain More
Brent G. Wilson
Patrick Parrish

Learning Experience as Transaction: A Framework for Instructional Design
Patrick Parrish
Brent G. Wilson
Joanna C. Dunlap

The Seven Trans-disciplinary Habits of Mind: Extending the TPACK Framework Towards 21st Century Learning
Punya Mishra
Matthew J. Koehler
Danah Henriksen

Virtual Worlds as a Trigger for Transformative Learning
Steve W. Harmon

Using digital video to promote teachers’ transformative learning
Brendan Calandra
Anton Puvirajah

Opportunities for and Barriers to Powerful and Transformative Learning Experiences in Online Learning Environments
Benjamin B. Bolger,
Gordon Rowland,
Carrie Reuning-Hummel,
Stephen Codner

Designing Opportunities for Transformation with Emerging Technologies (pdf posted by permission)
George Veletsianos

Shaping global citizens: Technology enhanced inter-cultural collaboration and transformation
P. Clint Rogers

A Framework for Action: Intervening to Increase Adoption of Transformative Web 2.0 Learning Resources
Joan E. Hughes,
James M. Guion,
Kama A. Bruce,
Lucas R. Horton,
Amy Prescott

Enjoy!

The importance of ALT-J going open access

The ALT-J Journal has been renamed to “Research in Learning Technology”, but more importantly, starting in January 2012 the journal will be published under an open access license.Why is this important? ALT-J is quite respected in the field, and the number of high-profile, highly-respected journals in the field that are open access is limited. As high-profile, high-quality journals take the open access route, it is highly likely that more and more researchers will entertain the idea of publishing in venues that embrace openness (and not the type of “openness” that requires researchers to pay to have the ability to disseminate their work).

Scholarly publishing has traditionally been evaluated in terms of perceived journal quality and citation counts. Empirical research has indicated (a) citation advantages for papers published in an open access manner [Hajeem, Harnad, & Gingras, 2005], or (b) no significant differences in terms of citation counts between open access and non-open-access journals [Zawacki-Richter, Anderson, & Tuncay, 2010]. As far as journal quality goes: even though the number of high-quality open access in the field is limited, open access does not necessarily mean low quality. ALT-J’s move into the open access realm demonstrates this, and a number of people even predict that ALT-J will gain a higher status in the field.

References

Hajjem, C., Harnad, S. and Gingras, Y. (2005) Ten-year cross-disciplinary comparison of the growth of open access and how it increases research citation impact. IEEE Data Engineering Bulletin, 28(4), 39-47.

Zawacki-Richter, O., Anderson, T., & Tuncay, N. (2010). The growing impact of open access distance Education journals: A bibliometric analysis. The Journal Of Distance Education / Revue De L’ÉDucation à Distance, 24(3).

Full disclaimer: I serve on ALT-J’s editorial board.

Data Snippet: Connections in an Online Course

This post is part of this year’s goal to share more data and findings from my in-progress papers. My research assistant and I are working on a paper examining certain aspects of an online course. We came across an interesting quote and I thought that it might be of interest to others because this student is describing an experience that (some might say) is not frequent:

[I am] really liking that connection with our classmates… it’s interesting that in a traditional face-to-face course, I don’t always feel as connected to my classmates, even though I’m going to be sitting right next to them, engaged in face-to-face conversation.

Even though I am not at all interested in comparing face-to-face and online courses (other than to point out that online affords different opportunities), I think that the quote above indicates once again that online courses can be enjoyable and that face-to-face does not necessarily mean interactive or connected. To play with Sherry Turkle’s new book title, is this a case of “together alone?”

Photo credit: Sitting alone, by naraekim0801

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