Three experiments are described which support the hypothesis that in a lexical decision task, prefixed works are analyzed into their constituent morphemes before lexical access occurs. Results compare classification times of nonwords that are and are not stems, of free and bound morphemes, and of stems and control items. (CHK)

A previous study by Gibson et al. (1972) that investigated the effect of orthographic structure on letter search was replicated and extended in order to identify factors that might explain the apparent discrepancy between their results and those of comparable studies. Experiment one tested whether the discrepancy might be explained by difference…

In six experiments subjects saw and pronounced, either aloud or silently, seven-item lists made from vocabularies of phonologically identical items. These materials were used to test the predictions of a precategorical and a postcategorical hypotheses for the modality effect in immediate memory. (Author/SW)

A study investigated whether a visual selective attention deficit with its presumed basis in slow visual processing referred to the same phonological recoding deficit, or whether they were two independent sources of reading disability. Subjects were children aged 7 to 15 referred to a university clinic (the Waterloo Child Assessment…