This summary of research performed during the past five and one-half years and dealing with different attributes in memory functioning is organized around four attributes of memory: "Frequency Attribute: Verbal Discrimination" explores the development of the theory dealing with verbal discrimination tasks and lists several papers prepared during…

Three clearly distinguishable lists were given simultaneously for learning. In one condition, subjects recalled all three lists; in a second condition, each list was given a different type of retention test although one of the lists was recalled. All subjects were fully informed of the materials and tests. The critical interest was in the recall…

Results of this experiment show that the lists composed of high-frequency words were more difficult to learn than lists composed of low-frequency words at all stages, but these lists were not differentially forgotten. (Editor)

This study investigated verbal learning when separate tasks were presented simultaneously, with variations in the number of tasks specified to be learned and in the number of tasks presented. Results indicated that the effect of certain independent variables was similar to the effect found when tasks were learned singly. The spacing effect, for…

Little is known about the accuracy of temporal codes for memories, and still less about the nature of the codes. This report addresses the central question of the mechanisms by which order information is attached to memories. The results of 16 experiments indicate the role of some independent variables on temporal coding in relatively short-term…

Several different issues in the temporal coding of words were subjected to experimental analysis. Two experiments evaluated three response measures (recency judgments, position judgments, lag judgments) used to index temporal coding. Lag judgments were found to be of little use; subjects could make valid position and recency judgments without…

This study examined the interrelationships among a number of episodic memory tasks and among various attributes of memory. A sample of 200 college students was tested for ten sessions; 28 different measures of episodic memory were obtained. In addition, five measures of semantic memory were available. Results indicated that episodic and semantic…

Subjects learned one, two, or three verbal lists simultaneously. Recall of the common list after 24 hours increased directly as the number of lists learned simultaneously increased. Assuming that simultaneous learning reduced interference, the interference was from extraexperimental sources of a proactive nature. (Author/CP)

Constant-order paired-associate lists were used in which the numbers 1-24 were stimulus terms, and 24 nouns were response terms. The order of the nouns was varied across five lists to produce a different number of the hierarchical conceptual levels in the lists. There were two degrees of original learning and three types of retention tests after…

This research on factors influencing verbal learning and retention has used new techniques, attacked new problems, and tested new theories while trying to keep the experiments systematic. Studies conducted involved (1) the effect of varying the length of the intertrial interval on the learning and retention of different types of learning tasks;…