Thirty-two intellectually superior and 32 intellectually normal fifth and sixth graders were compared on measures of attention and comprehension of complex verbal stimuli under successive versus simultaneous modes of presentation. Ss were exposed to either successive or simultaneous presentation of printed short stories on slides. Analysis of…

Two experiments examined the relative effects of concrete and abstract advance organizers on students' memory for subsequent prose. Results of the experiments are discussed in terms of the memorability, familiarity, and visualizability of concrete and abstract verbal materials. (JD)