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Visual Instructor Presence in Lecture Videos: Is Cognitive Load a Concern?

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By: Julie Jacobs, Jana King, Dana Simionescu, Tianhong Shi

Overview

A recent scenario with our course development team challenged our existing practices with lecture media. Formerly, we had encouraged faculty to include only slides with narration in their lecture videos due to concerns about increasing learners’ cognitive load. Students voiced their hope for more instructor presence in courses, and some instructors started asking about including video of themselves inserted into their lectures. This prompted us to begin thinking about instructor presence in lecture videos more deeply: why were we discouraging faculty from including their faces in lecture videos? While our practices were informed by research-based media theory, we also recognized those theories might be outdated. 

We began to explore the latest research with the following question in mind: does visual instructor presence in lectures increase extraneous cognitive load in learners? We use the phrase “visual instructor presence” to refer to lecture videos where an instructor’s moving image is seen giving the lecture, composited together with their slides. This technique is also commonly referred to as “picture-in-picture”, as seen in the image below.

Image 1: Adam Vester, instructor in College of Business, in his lecture design for BA 375 Applied Quantitative Methods.

A task force was created to review recent research on visual instructor presence and cognitive load, specifically in lecture-type videos. Our literature review included a look at leading multimedia learning scholar Richard E. Mayer’s newest group of principles. We also reviewed more than 20 other scholarly articles, many of which were focused on learner perception, motivation & engagement, and emotion. 

Findings

According to recent work in multimedia learning, research in this area should focus on three areas, namely learning outcomes (“what works/ what does not work?”), learning characteristics (“when does it work?”), and learning process (“how does it work?”) (Mayer, 2020). Below are our conclusions from the 23 research articles we reviewed regarding instructional videos, attempting to answer the above questions of “what works”, “when does it work”, and “how does it work”.  

  1. This review of recent literature shows no evidence that visual instructor presence increases extraneous cognitive load. 
  2. Students tend to prefer lectures with visual instructor presence – they report increased satisfaction and better perceived learning, which can boost motivation and engagement. 
  3. While some studies find no difference in performance outcomes when visual instructor presence is utilized, others found increased performance outcomes with visual instructor presence. Proposed explanations: embodiment techniques such as gestures, eye contact, and body movement which fosters generative processing (the cognitive processes required for making sense of the material); social cues can help direct the learners’ attention; increased motivation (as per point 2 above) contributes to better learning. 
  4. The effects may depend on the specific type of visual instructor presence (e.g., small picture-in-picture, green-screen, or lightboard) and the characteristics of the content (complex/difficult vs simpler/easier). 

Recommendations

Based on these findings, our team has decided to remove the default discouragement of instructors wishing to use picture-in-picture in lectures. If an instructor is interested in having their visual presence in the lectures, we encourage them to discuss this option with their Instructional Designer and Lecture Media Coordinator to determine if this style is a good fit for them and their content.

Image 2: Bryony DuPont, associate professor of Mechanical Engineering, utilizing visual instructor presence in her lecture design for ME 382 Introduction to Design.

We recommend considering the following points:

  • What is their presentation style? Do they tend to spend a lot of time talking over a slide or is there a lot of text or other action (e.g. software demo) happening in the video? If there’s a lot happening on the screen, perhaps it’s better to not put their video on top of it (the instructor video could be placed only at the beginning and/or end instead).
  • What type of content? Is it simple or more complex? For more visually complex content, a lightboard or digital notation without picture-in-picture may work better, to take advantage of the dynamic drawing principle and the gaze guidance principle. 
  • Is it a foreign language course? If so, it’s likely helpful for the learners to see the instructor’s mouth and body language. 
  • Is the instructor comfortable with being on video? If they’re not comfortable with it, it may not add value. This being said, our multimedia professionals can help make instructors more comfortable in front of the camera and coach them on a high-embodied style of lecturing. 

Since implementing these guidelines and working with an increased number of lectures with visual instructor presence, we also noticed that it works best when the instructor does not look and sound like they’re reading. Therefore, for people who like working with a script, we recommend practicing in advance so they can sound more natural and are able to enhance their presentation with embodiment techniques.

We would love to hear about your opinions or experiences with this type of video. Share them in the comments!

For a detailed summary of our findings and full citation list, please see the full Literature Review.

Beginning to Define Presence in Online Courses

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Introduction

When I hear the word presence, I’m reminded of a teacher taking attendance at the beginning of class. I picture the teacher calling out each student’s name, the students responding either “here!” or “present!” in turn. In this scenario, though, while the students each affirm their presence, the teacher’s presence is a given. The teacher doesn’t mark herself present in the attendance record. The teacher doesn’t need to prove they taught class or prove they exist to students. As one might suspect, this is an area where online asynchronous courses differ from traditional classrooms: one’s presence is not a given. Presence becomes even more important in online settings. Perhaps that’s why we hear so much about it. Online presence. Social presence. Instructor presence. But, what do these words really mean in virtual classrooms?

There are many ways to define presence. The first entry in Merriam Webster’s online dictionary defines presence as “the fact or condition of being present.” This entry directs readers to present (adjective, entry 3 of 4), which defines present as “now existing or in progress.” There is an immediacy to these words, a temporal aspect, and a physicality: Presence. How do we reconcile the temporal and physical connotations of this term with online, asynchronous interactions?

In this digital age, I think most folks would agree that it’s possible to experience presence online, to feel that someone is real, even if they’re not standing in front of you. But, how do we define it within this context? How do we describe presence to someone who’s attempting to achieve it virtually? For myself and other instructional designers tasked with guiding faculty to design and prepare to facilitate an online course, where they’re told their ability to establish presence will directly impact student success, what advice do we offer? Simply put, how is presence communicated in an online, asynchronous course?

To begin answering these questions, I’ll provide an overview of Garrison et al.’s (2000) Community of Inquiry (CoI) framework, which defines three presences for computer-mediated communication (i.e., the communication that occurs in online courses and other digital environments). Then, we’ll briefly consider how you might think about presence in your own online courses. 

Overview of Community of Inquiry (COI)

We’ll start with a brief overview of Garrison et al.’s (2000) model of Community of Inquiry (CoI). CoI is a conceptual model that identifies three presences that are essential for online classrooms. It’s worth noting, too, that this model was created to provide a framework for presence mediated through the use of digital technologies. The three presences are 1) cognitive presence, 2) social presence, and 3) teaching presence.

Cognitive presence refers to the opportunities learners have “to construct meaning through sustained communication” (Garrison et al., 2000, p. 89). This is considered a foundational element of the model and might include, for example, an instructor providing feedback to students or students engaging in peer review.

Social presence includes opportunities the instructor and students have to share personal details within the classroom environment. Social presence supports cognitive presence and plays an important role in meeting course goals that are explicitly affective (Garrison et al., 2000).

Teaching presence is divided into two functions: structure and process. The structure can be thought of as the design of the educational environment and the process is often thought of as the facilitation of the environment (Garrison et al., 2000). Although different people may be involved in each function (e.g., an instructional designer and teacher might design a course, but a different instructor and a TA might be responsible for facilitating the course), both functions play a role in teaching presence.

While we don’t have enough space here to dig into each of these presences, I highly recommend checking out the article, “Designing a community of inquiry in online courses” (Fiock, 2020), which lists many instructional activities that can be implemented to support each type of presence.

Suggestions for Moving Forward

Ultimately, you might find it hard to keep these presences straight, and that’s okay! Richardson and Lowenthal (2017) point out that academic publications don’t even use the same terms to describe various online presences. Acknowledging that there are different interpretations of presence in online contexts and different approaches for achieving presence online is the point of this post. In the future, you can always refer back here or save the resources listed below for reference later. In Ecampus, we try to emphasize instructor-student, student-student, and student-content interaction, an approach you might find easier to remember.

What I hope you take away from this post is that it’s not as important to remember the differences between each of these presences as much as it is important to include a variety of strategies in your course to communicate and establish presence. I’d also encourage you to occasionally try new approaches and to strive to communicate presence in multiple ways, without getting locked into a narrow view of presence and what it means in online classrooms. 

References & Resources

Fiock, H. (2020). Designing a Community of Inquiry in online courses. The International Review of Research in Open and Distributed Learning, 21(1), 135-153. https://doi.org/10.19173/irrodl.v20i5.3985

Garrison, Anderson, T., & Archer, W. (1999). Critical inquiry in a text-based environment: Computer conferencing in higher education. The Internet and Higher Education, 2(2), 87–105. https://doi.org/10.1016/S1096-7516(00)00016-6 

Merriam-Webster. (n.d.). Presence. In Merriam-Webster.com dictionary. Retrieved July 29, 2022, from https://www.merriam-webster.com/dictionary/presence

Merriam-Webster. (n.d.). Present. In Merriam-Webster.com dictionary. Retrieved July 29, 2022, from https://www.merriam-webster.com/dictionary/present

Richardson, J. C., & Lowenthal, P. (2017). Instructor social presence: Learners’ needs and a neglected component of the community of inquiry framework. In A. Whiteside, A. Garrett Dikkers, & K. Swan, (Eds.), Social presence in online learning: Multiple perspectives on practice and research (pp. 86-98). Stylus.