Education quality gaps are commonly read as gaps between regions. This study tests that assumption using accreditation results for 1,056 basic-education units in West Nusa Tenggara for 2024–2026. Results are published only as letter grades, although each letter represents a defined score range. Those ranges were used to estimate the underlying scores by maximum likelihood, controlling for differences in visitation year. The estimated provincial score is 82.30, with district estimates spanning only 80.8 to 84.4. Only 4.0 percent of the quality gap comes from differences between districts, with a 95 percent confidence interval of 2.5 to 8.4 percent, while the remainder comes from differences between schools within the same district. This does not remove the role of districts as budget delivery units; it changes the basis of allocation from regional averages to the number of schools still below the quality threshold.
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