With the increase in life expectancy and the rapid advancement of digital technology, older adults often face challenges where formal learning opportunities are scarce. Consequently, they are compelled to rely on instructional videos for continuous learning. However, many older adults struggle with low self-efficacy and motivation. Although…

Background: Video lectures which include the instructor's presence are becoming increasingly popular. Presenting a real human does, however, entail higher financial and time costs in making videos, and one innovative approach to reduce costs has been to generate a virtual speaking instructor. Objectives: The current study examined whether the use…

Via AI video generators, it is possible to create educational videos with humanistic instructors by simply providing a script. The characteristics of video types and features of instructors in videos impact video engagement and, consequently, performance. This study aimed to compare the impact of human instructors and AI-generated instructors in…

Lectures prevail as a ubiquitous teaching and learning method across universities worldwide. Whereas lectures have been conceptualized from language-centred perspectives, lectures' materiality as linked to their socio-cultural and historical meanings have been scarcely explored. To address this gap, we tackle the materiality of communication in…

This paper examines learners' behaviors while watching online video lectures to understand learner preferences. 2927 students' 18,144 video events across 13 courses on Sakai CLE LMS, which were integrated with Kaltura Video Platform and Google Analytics, were analyzed. For the analysis of the quantitative data, one-way ANOVA, Chi-square test of…

Background: Two important influences on students' evaluations of teaching are relationship and professor effects. Relationship effects reflect unique matches between students and professors such that some professors are unusually effective for some students, but not for others. Professor effects reflect inter-rater agreement that some professors…

Faculty members ("N" = 39) from two universities had their lectures recorded. From these videos, we selected 5-min vignettes centered on eight dimensions of the Teacher Behavior Checklist. Undergraduate students from two universities ("N" = 753) viewed three 5-min video clips of college teachers across various disciplines.…