This experiment attempted to obtain an estimate of perceptual isolation effects when the isolated item was the only distinctive feature in the list and to obtain data on continuous serial learning in order that isolation and serial-position effects could be compared directly. (Author/RK)

Whereas Martin (1973) examined item effects for individual subjects as indicators of their idiosyncratic organization of the middle of a lengthy, constant sequence of unrelated nouns, the present study examined the constancy of item effects across groups of subjects learning a short list of moderately difficult CVCs. (Author/RK)