It is generally agreed that long term memory is primarily a semantically based system. If this is correct the pronounceability of phonetic units should not affect recall over long intervals of time. In Experiment I children recalled non-pronounceable and pronounceable units equally well. In Experiment II non-pronounceable units appeared in the same list. The lists were designed so that children's overt pronunciations of non-pronounceable units would be the same as a corresponding pronounceable unit. No differences were found between mixed and non-mixed lists.
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