Multimedia pedagogical agents are on-screen characters that allow users to navigate or learn in multimedia environments. Several agents' characteristics may moderate their instructional effectiveness, including appearance, gender, nonverbal communication, motion, and voice. Here, we conducted a meta-analysis to test hypotheses from diverse…

Defines instructional roles of dynamic visual displays (DVDs), including animation and interactive video, and provides guidelines for using them in media-based instruction. Topics addressed include theoretical bases; examples of strategic applications of DVDs; six instructional conditions for using DVDs; and considerations for the design and…