The effects of several factors on expended processing capacity were measured. Expended processing capacity was greater when information was retrieved from secondary memory than from primary memory, when processing was of a deep, semantic nature than when it was shallow and physical, and when processing was more elaborate. (Author/GDC)

Synonyms within languages were compared with exact repetition of words as aids to recall. Interlingual synonyms had effects identical to those of exact repetition, whereas intralingual synonyms were less effective than exact repetition. Bilingual equivalence of words does not appear to be due to common underlying semantic structures. (Author/RD)

A multirate mathematical model is presented to support the hypothesis that different types of information are lost from a memory trace at different rates. The model is validated by two experiments assessing the retention of pictures and of sentences at three different delays by cued recall. (Author/CP)

The fan effect (the difficulty in retrieving any one fact after learning many about a concept) occurs only when the facts with repeated concepts are stored as independent episodes. It tells us nothing about the code formed by a pattern of interconnected concepts. (Author/CP)