Neither adults' nor children's performances on a reconstruction task was affected by spatial variation, but children's performance was influenced by variation in the temporal sequence of stimulus presentation. This article is based upon an M.A. thesis by the first author under supervision of the second author. A version of this paper was presented…

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)