This study examined the practices of Title I elementary school principals in the state of Florida for the school year 2009 - 2010. Elementary school principals in six Florida school districts responded to a survey to determine the extent of implementation of instructional and organizational practices identified by research to improve instruction and learning. The practices (sub-constructs) examined were identified as curriculum, instruction, assessment, educational agenda (vision, mission, beliefs, goals), leadership for school improvement, community building, and culture of continuous improvement. The results of this study indicated that participating Florida Title I principals believed that they were implementing effective instructional and organizational practices in their schools. Despite this belief, all but two of the schools represented in the results failed to make adequate yearly progress (AYP) for school year 2009-2010. The analysis of the responses indicated a negative, but not statistically significant, correlation between self-reported scores and AYP percentage points earned. These results warrant further study to determine if the reported indicators can be verified by observation or other personnel. Within the limits of this study, the negative correlation suggested that school principals should examine their practices related to instructional and organizational effectiveness for fidelity and stakeholder buy-in. Principals must not only believe that these practices are evident, they must verify them through constant monitoring and quantitative measures.