Early developmental skills, such as attention, language, and fine motor abilities, can be assessed in preschool to predict later achievement, particularly in reading. Connecticut Documentation & Observation for Teaching System (CT DOTS) is a holistic measure used to track the skill development of preschoolers who attend preschool programs throughout the state. The aim of this study is to assess school readiness skills, including academic and nonacademic skills, to predict reading achievement and identify the students most at risk of requiring special education support. Archival data from CT DOTS for participants who participated in an integrated preschool program was utilized in this study. Student assessment results in attention, language, and fine motor were linked with STAR Reading data to obtain a measure of reading achievement in elementary school. Student reading performance at Title 1 and non-Title 1 schools was also measured as part of this study. Data was then analyzed using multiple regression and independent samples t-test analyses, to answer research questions. Results suggest that the most significant predictor of reading performance on the STAR Reading was found in CT DOTS in expressive language on the STAR Reading Unified score. Overall, the model explained 26.3% of the variance, and the model is a moderate predictor of the STAR Reading Unified scores. There was no significant effect on the STAR Reading Unified score for fine motor and engagement in learning (attention) or on the STAR Reading Enterprise score. For students attending Title-1 schools, a significant difference was found in the means between groups in STAR Reading Unified Scores (p = <0.001) with the first group (Title 1) having a lower mean score than the second group (non-Title 1). [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]