In everyday life, children hear but also often see their caregiver talking. Children build on this correspondence to resolve auditory uncertainties and decipher words from the speech input. As they hear the name of an object, 18- to 30-month-olds form a representation that permits word recognition in either the auditory (i.e. acoustic form of the…

Man seems unable to retain different information from different senses or channels simultaneously; one channel gains full attention. However, it is hypothesized that if the message elements arriving simultaneously from audio and visual channels are redundant, man will retain the information. An attempt was made to measure redundancy in the audio…

This compilation of readings in educational media and research makes accessible published and unpublished documents relevant to designers and users of educational media. Volume I is divided into two parts, "Basic Foundations" and "Media Characteristics.""Basic Foundations" refers to that upon which a science of instructional media design and…