Effects of vocabulary size and acoustic similarity on serial recall of mouthed stimuli
Turner, Marilyn L. Schwartz, Marci K. Clifton, Genell E. Engle, R. W.
Turner, Marilyn L.
Schwartz, Marci K.
Clifton, Genell E.
Engle, R. W.
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1994
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Turner, M. L., Schwartz, M. K., Clifton, G. E., & Engle, R. W. (1994). Effects of Vocabulary Size and Acoustic Similarity on Serial Recall of Mouthed Stimuli. The Journal of General Psychology, 121(4), 361–376. https://doi.org/10.1080/00221309.1994.9921210
Abstract
The characteristics of mouthed recency and suffix effects found in immediate serial recall tasks with visually presented stimuli were examined. In past research enhanced recency with mouthing when stimuli were drawn from Size 8 but not Size 3 vocabularies was found (Turner et al., 1987). One cause for these findings may have been differences in the acoustic similarity between items from the Size 3 and Size 8 vocabularies. In the present experiment the degree of similarity was manipulated for vocabulary Sizes 3 and 8. The mouthed or passively read letters were acoustically similar, dissimilar, or mixed. The results replicated the vocabulary size effects found in Turner et al. but were not confounded by the acoustic similarity of the list items. Mouthed recency and suffix effects were found in recall of Size 8 but not Size 3 vocabularies, and the vocabulary size effects were found regardless of acoustic similarity. Conversely, research has found auditory recency and suffix effects to be dependent on the acoustic similarity of list items (e.g., Crowder, 1976; Greene & Crowder, 1984) and independent of vocabulary size (Turner et al., 1987). The findings thus lead to the conclusion that auditory and mouthed recency and suffix effects are not mediated by the same underlying source. © 1994 Taylor & Francis Group, LLC.
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Taylor & Francis
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Journal of General Psychology
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00221309