{"metadata":{"what":"The per-pupil figure this site used to derive (CT OPM ej6f-y2wf education_expenditures / school_enrollment_average) set beside the state Department of Education's Net Current Expenditures Per Pupil (NCEP), every town and every year both cover. Read by /per-pupil-spending-data.html.","generated_by":"Data/compare_per_pupil_opm_ncep.py","write_up":"Data/per-pupil-opm-vs-ncep.md","inputs":{"opm":"src/data/ct_ucoa_town_indicators.json (pulled 2026-08-10, dataset updated 2026-03-03)","ncep":"src/data/ct_ncep_towns.json (generated 2026-09-24T22:58:37Z)","districts":"src/data/ct_town_school_districts.json (generated 2026-09-04T12:50:16Z)","ucoa_function":"Data/ct_ucoa/mfi_ucoa_by_function_2020-2023.csv (e2qt-k238)"},"years_compared":["13-14","14-15","15-16","16-17","17-18","18-19","19-20","20-21","21-22","22-23"],"rank_rule":"Among towns with both figures that year; 1 = lowest; ties share the lowest position. rank_shift = rank_opm - rank_ncep.","gap_rule":"gap = OPM per pupil - NCEP; gap_pct is relative to NCEP.","driver_rule":"ln(OPM/NCEP) = ln(ee/NCE) - ln(enrollment/ADM); the larger absolute term is the driver. Not computed for district-row cells.","largest_rule":"The 10 most populous towns by OPM population_state_dept_of_public_health in 22-23.","ncep_rounding":"NCEP before 2017-18 is rounded to the dollar in CSDE's workbooks; the decomposition uses NCE and ADM directly.","full_analysis":"Data/per_pupil_opm_vs_ncep.json and Data/per-pupil-opm-vs-ncep.md in the repository","ncep_not_reported":{"23-24":["Goshen","Litchfield","Morris","Warren"]},"ncep_not_reported_note":"CSDE's 2023-24 report lists District No. 20 with no figures and prints no row for Region 6 or Litchfield. A missing figure is missing, never zero.","ncep_k12_identity_check":[{"district":"206","members":["Goshen","Morris","Warren"],"ncep_16_17":{"Goshen":20229,"Morris":20229,"Warren":20229},"identical":true,"district_17_18":24684.75,"step_pct":22.0},{"district":"210","members":["Burlington","Harwinton"],"ncep_16_17":{"Burlington":14803,"Harwinton":14803},"identical":true,"district_17_18":15094.25,"step_pct":2.0},{"district":"212","members":["Bridgewater","Roxbury","Washington"],"ncep_16_17":{"Bridgewater":29482,"Roxbury":29482,"Washington":29482},"identical":true,"district_17_18":30542.44,"step_pct":3.6},{"district":"213","members":["Durham","Middlefield"],"ncep_16_17":{"Durham":18956,"Middlefield":18956},"identical":true,"district_17_18":19646,"step_pct":3.6},{"district":"214","members":["Bethlehem","Woodbury"],"ncep_16_17":{"Bethlehem":19180,"Woodbury":19180},"identical":true,"district_17_18":20232.36,"step_pct":5.5},{"district":"215","members":["Middlebury","Southbury"],"ncep_16_17":{"Middlebury":17245,"Southbury":17245},"identical":true,"district_17_18":17767.99,"step_pct":3.0},{"district":"216","members":["Beacon Falls","Prospect"],"ncep_16_17":{"Beacon Falls":15313,"Prospect":15313},"identical":true,"district_17_18":15681.21,"step_pct":2.4},{"district":"217","members":["Haddam","Killingworth"],"ncep_16_17":{"Haddam":17561,"Killingworth":17561},"identical":true,"district_17_18":17805.4,"step_pct":1.4},{"district":"218","members":["Lyme","Old Lyme"],"ncep_16_17":{"Lyme":20354,"Old Lyme":20354},"identical":true,"district_17_18":21589.49,"step_pct":6.1}],"ncep_step_note":"step_pct is the district's 17-18 figure against its member towns' shared 16-17 figure. For comparison, the median change over the same year for the towns CSDE kept printing was 2.9%. A step well outside that is a change in the line where the row changes, and a page drawing the series must say where the row changes.","ncep_sources":{"2007-08 to 2016-17":"CSDE Connecticut Public School Expenditures Report, nceadm workbooks (portal.ct.gov, archived pages)","2017-18 to 2023-24":"CSDE's NCEP PDFs as mirrored by the School + State Finance Project (schoolstatefinance.org); CSDE no longer posts these years","2024-25":"CSDE basiccon workbook, January 2026 revision (portal.ct.gov/sde/fiscal-services)"},"ncep_years":["07-08","24-25"],"group_labels":{"a_own_k12":"Own K-12 district","b_partial_regional":"Regional district for some grades","c_k12_regional":"K-12 regional district (NCEP is the district's row)","e_tuition_out_hs":"No high school; high school students tuitioned out","d_largest":"Ten most populous towns (overlaps the groups 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