Two experiments were conducted to examine the possibility that numbering might have an effect on learning of lists composed of more meaningful and highly available materials, words, and to further explore the possibility that different strategies may be employed in learning the two types of lists. In Experiment 1, 40 female students from…

In 5 experiments, a Hebb repetition effect, that is, improved immediate serial recall of an (unannounced) repeating list, was demonstrated in the immediate serial recall of visual materials, even when use of phonological short-term memory was blocked by concurrent articulation. The learning of a repeatedly presented letter list in one modality…

The relation between the amount of free study time needed to prepare for a perfect serial recitation and the number of words in the list was determined for individual subjects. List organization, controlled by experimenter or by subject, failed to affect difficulty. (CHK)

Two experiments tested what happens to learning performance as serial location of a word list is removed as a consistent source of associations across trials. Serial recall produced a stable level of performance and little learning. Serial recall learning may require certain memory factors in combination. (CHK)