abstract: The purpose of this action research study was to implement and study a systematic framework for using data inquiry and collaborative teams to improve practices that affect the post-school outcomes of students with disabilities. Teams at six high schools in a large public school district participated in a multi-level intervention involving work within their teams, collaboration with other schools, use of a web-based tool to examine data, and support from district leaders. Ultimately, teams used data to identify change targets, linked those to evidence-based predictors of post-school success, and designed action plans to change practices and programs related to post-secondary transition at their schools. The researcher used a mixed methods concurrent design to explore how participants engaged in situated learning and a process of collaborative meaning- making to reflect on and change their practices. The researcher used a collaborative team survey and observations to collect data from all teams, as well as an in-depth case study of one team to collect further data through a focus group, semi-structured interviews, artifact analysis, and observations. Qualitative data analysis incorporated both inductive and deductive approaches through initial coding, focused coding, and mind mapping. Results suggested the data inquiry process enabled school teams to construct meaning about their practices, and through collaboration, they were able to develop deeper understanding of problems and solutions. A comparison of means and standard deviations of five survey constructs indicated teams placed high levels of value on collaboration within their school teams and with other school teams. Furthermore,results suggested establishing a continuous improvement process to address post- secondary transition provided structure and sustainability for examining data and making changes in practices. This work resulted in the implementation of an ongoing continuous improvement process for special education practices in a large public school district. / Dissertation/Thesis / Doctoral Dissertation Educational Leadership and Policy Studies 2016

Recent research surrounding educational leadership indicates that among school-related factors, leadership is second only to the classroom teacher as a variable associated with improving student achievement (Leithwood et al., 2004). Given the current climate of high stakes testing and accountability, the role that the principal plays in fostering continuous school improvement and ensuring academic success for all students has become increasingly important. To enhance school performance, the literature proposes that school leaders serve as instructional leaders and distribute their leadership responsibilities. One significant element of such leadership models is the ability of the school principal to support and promote inquiry by teachers and school administrators into student and school data. Wayman and Stringfield (2006) note that a campus culture that values and practices data-based decision making is marked by collaborative inquiry into student data. Advocates of data-driven decision making and data use suggest that inquiry into student data has been shown to be useful in improving overall school practice (Bernhardt, 2003; Wayman and Stringfield, 2006). Furthermore, using data to focus on specific goals will improve student learning (Schmoker, 1999). To explore how principals can foster the development of structures that allow for inquiry into student and school data, a case study of one purposely-selected high school was conducted. The four primary research questions this study addressed were: (1). What structures can high school principals develop and implement that promote inquiry by teachers and administrators into data? (2). What structures positively impact student academic achievement, as perceived by high school teachers and principals? (3). How are teachers using student achievement data in their instructional decision-making? (4). What are the qualitative data elements that school leaders might consider to inform the ongoing planning and decision-making process? Over the course of four months, data was gathered through individual interviews, observations, a survey, and analysis of pertinent documents. Several themes surrounding data analysis and leadership practices emerged. These included: the benefits of using structures to empower school staff to own data, the use of structures to allow for time for collaboration, using data to improve teaching practices, and the benefits of providing teachers greater access to pertinent data. / text