Word age-of-acquisition (AoA) affects reading. The mapping hypothesis predicts AoA effects when input--output mappings are arbitrary. In Spanish, the orthography-to-phonology mappings required for word naming are consistent; therefore, no AoA effects are expected. Nevertheless, AoA effects have been found, motivating the present investigation of…

Presents study exploring oral reading errors of normally developing readers to determine any developmental differences in learning phoneme-grapheme units; to discover if the grapheme representations of some phonemes are more difficult to read than others; and to replicate results reported by Fowler, et. al. Findings show most oral reading errors…