Black-and-white or color versions of four types of illustrations (simple line, detailed line, photograph of model, photograph of specimen) of the heart were used to complement oral instruction in a study to determine which type of visualization would be most effective in facilitating the achievement of students of different IQ levels. (Author)

Describes a study of undergraduates that examined the effect of specific visual skills on academic achievement and on the achievement of different levels of educational objectives. Discusses color and learning objectives, considers computerized analysis of visual skills, presents results of statistical analyses, and suggests implications for…