“…Under NCLB, schools that failed to meet proficiency goals for three or more consecutive years were required to implement a suite of strategies related to changes in school organization, staffing, management, and governance—forerunners to the school turnaround strategies examined in this meta-analysis. These options included restructuring school programs, replacing administrators and teachers (the transformation and turnaround models, respectively), restarting the school as a charter school or under the management of a private company, closure , and state turnaround , such as the school improvement efforts conducted under NCLB waivers (Murphy & Bleiberg, 2019). As NCLB granted states the flexibility to determine the conditions under which schools had to undergo corrective action, initial implementation of these strategies was decidedly uneven (Herrmann et al, 2014; Schueler et al, 2017).…”