This study investigated kindergarten, preschool, and first-grade children who were typical or specific language impaired (SLI) to determine whether there were developmental differences in their phonological awareness abilities (i.e., syllable, onset/rime, phonemes). Results revealed a significant difference between children who were typical and children who were SLI on the sound-segmentation tasks. The children who were typical were more effective at segmenting than were children who were SLI. Significant differences were also noted between the types of phonological task completed among participants. The combined data from this study revealed developmental trends in phonological awareness for the typical population. The developmental trend was not observed in the SLI population, however. Clinical implications are suggested. (Contains 5 tables and 1 figure.)