Research Findings: Assessing the development of early literacy skills is necessary in order to identify children with delays, provide appropriate intervention, and monitor progress. The purpose of the current study was to compare the data obtained from 2 curriculum-based assessments of phonological awareness skills in a sample of low-income, urban preschoolers. Participants included 227 children from Head Start and other community-based preschool classrooms located in a midwestern city. The Preschool Individual Growth and Development Indicators (IGDIs) and the Phonological Awareness and Literacy Screening-PreK (PALS-PreK) were administered in the fall and spring of the year. Results suggested that the PALS-PreK was more advantageous than the IGDIs in terms of providing meaningful data for this group of children. The IGDIs appeared to be more appropriate for developmentally advanced preschoolers in this population. Practice or Policy: There remains a critical need for assessments of emergent literacy that are appropriate for diverse groups of preschool children and can feasibly be used for monitoring development. (author abstract)