This study investigated the effects of computer and print text density on learning, and the nature and effects of learner preference for different density levels in both print and computer presentation modes. Subjects were 48 undergraduate teacher education majors, who were assigned at random to six treatment groups in which a statistics lesson…

The purpose of this study was to examine the effects of instruction that is organized in two alternative formats--hierarchical (Gagne, 1962) and elaborated (Reigeluth, 1979)--on learner's recall and application of content-specific principles. Sixty-nine college juniors and seniors enrolled in an education media production course studied one of two…

This dissertation presents the results of an investigation of visual mental imagery as a strategy hypothesized to increase the amount of interaction with content material and therefore the level of information processing and acquisition, and to assist information retrieval on posttests. Four treatments were used in a crossed, randomized two by two…

The relative effectiveness of digital versus photographic images was examined with 96 college students as subjects. A 2x2 balanced factorial design was employed to test eight hypotheses. The four groups were (1) digitized black and white; (2) digitized pseudocolor; (3) photographic black and white; and (4) photographic realistic color. Findings…

This report describes a procedure for developing multimedia instructions that are "optimized" according to certain criteria, and in particular, compares the effect on performance in building from memory using: (1) interactive videodisc-based assembly instructions or (2) passive videotape instructions. It was found that the group…

This study examined the effectiveness of observable visual imagery strategy for the encoding of verbal information with special attention given to the relative effectiveness of the strategy for field-dependent and field-independent learners. The subjects, 54 undergraduate and graduaute students ranging in age from 20 to 54, were randomly assigned…

The relative effectiveness of verbal and visual augmentation of rate-modified speech in the presentation of technical material was investigated. Subjects were 40 graduate students who used instructional materials consisting of normal and compressed audiotape versions of the Dwyer heart script, printed copies of the script, and black and white…

The purpose of this study was to examine the effects of different levels of visual elaborations and practice on application learning of adults in a computer-based science lesson. A total of 141 university students participated in an introductory lesson covering Newtonian mechanics. Three levels of visual elaboration (static graphic, animated…