It has been nearly three decades since Thai basic education was affected by major changes adopted in the name of educational decentralization. A central aspect of implementing educational decentralization is shifting authority to schools. However, to date there is no literature that rigorously investigates the extent and degree of changes to reveal if decision making authority has shifted to schools. Moreover, the effects of the changes experienced by school settings have not been studied. In addressing these gaps, this study intends to: ...