docs/qa_reports/snapshot/census-stats.json
Served verbatim from the project repository. Internal working document conventions apply: documents may reference file paths, branch names, and findings-ledger anchors from the repo.
{
"meta": {
"date": "2026-06-10",
"task": "Exhaustive Snapshot-vs-served census, NYC chronic absenteeism (replaces 300-school sample, ledger A.6)",
"snapshot_source": "/Users/kxjin/Desktop/Projects/NYC Education Outcomes -- Chalkbeat/nyc-edu-data/data/quality/snapshot-values.json (bulk fetch of tools.nycenet.edu Snapshot API; raw per-DBN cache at data/reference/snapshot/{EMS,HS}/<reportYear>/)",
"served_source": "edu_data_local school_year_metrics metric_key='chronic_absenteeism_rate' subgroup='ALL' NOT suppressed, joined to schools",
"varname": "student_chronic_absent (report years 2019-2023 = school years 2018-19..2022-23; whole-percent values)",
"diff_definition": "served - snapshot (pp)",
"tolerance_headline": 1.5,
"bucket_convention": "below_-5pp: d<-5 | -5_to_-2: -5<=d<-2 | -2_to_-1: -2<=d<-1 | within_±1: -1<=d<=1 | +1_to_+2: 1<d<=2 | +2_to_+5: 2<d<=5 | above_+5: d>5; share_within_Xpp = |d|<=X",
"year_encoding": "snapshot reportYear = school-year END (2023 ↔ 2022-23)",
"old_sample": {
"file": "docs/qa_reports/chronic_absenteeism_rate__snapshot.json",
"n_sampled": 300,
"external_checked": 212,
"external_match": 141,
"external_agreement_rate": 0.6651,
"tolerance_abs": 1.5
}
},
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"per_year": {
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"n_compared": 1321,
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"above_+5": 22
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},
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"max": 11.904,
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"p99": 6.18
},
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"rate_correlation": 0.9873,
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}
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{
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"name": "J.H.S. 157 Stephen A. Halsey",
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
"dbn": "08X452",
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{
"dbn": "17K382",
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"diff": -12.68
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{
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{
"dbn": "29Q283",
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},
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"note": "A.6 ledger text: 'a real tail (-12 to +7.7pp) at large N'"
},
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"p1": -7.087,
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}
},
"cavg_descriptive": {
"note": "Descriptive only — cavg_student_chronic_absent is NYC's comparison-group average, not a validation target.",
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"p90": 24.03,
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}
},
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}
},
"2020-21": {
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},
"served_minus_cavg": {
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}
},
"2021-22": {
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},
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}
},
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"p10": -15.0,
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}
},
"pooled": {
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}
}
},
"a7_2024_2025_candidates": {
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"results": {
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},
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"mean_diff_pp": -27.54,
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"p90": 7.04
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"schoolwide_next_year_2024-25": {
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"p10": -69.3,
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},
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},
"band_K-8_same_year_2023-24": {
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"p10": -67.4,
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"band_1-8_same_year_2023-24": {
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"p90": 4.23
},
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"p10": -65.13,
"p90": 4.63
}
}
},
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"share_within_1.0pp": 0.0267,
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"p10": -50.24,
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},
"band_9-12_same_year_2023-24": {
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"p10": -57.06,
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}
}
},
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"mean_diff_pp": -31.83,
"p10": -70.13,
"p90": 3.57
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"schoolwide_prior_year_2023-24": {
"n": 1079,
"share_within_0.5pp": 0.0065,
"share_within_1.0pp": 0.0158,
"share_within_1.5pp": 0.0213,
"median_diff_pp": -29.06,
"mean_diff_pp": -29.56,
"p10": -69.24,
"p90": 6.44
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"schoolwide_two_prior_2022-23": {
"n": 1089,
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"share_within_1.0pp": 0.0239,
"share_within_1.5pp": 0.0349,
"median_diff_pp": -27.87,
"mean_diff_pp": -28.98,
"p10": -66.5,
"p90": 4.69
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"band_K-8_same_year_2024-25": {
"n": 926,
"share_within_0.5pp": 0.0151,
"share_within_1.0pp": 0.0173,
"share_within_1.5pp": 0.0194,
"median_diff_pp": -31.6,
"mean_diff_pp": -32.36,
"p10": -69.58,
"p90": 2.36
},
"band_1-8_same_year_2024-25": {
"n": 926,
"share_within_0.5pp": 0.0043,
"share_within_1.0pp": 0.0108,
"share_within_1.5pp": 0.0184,
"median_diff_pp": -32.11,
"mean_diff_pp": -33.41,
"p10": -69.88,
"p90": 0.93
},
"band_K-8_prior_year_2023-24": {
"n": 926,
"share_within_0.5pp": 0.0032,
"share_within_1.0pp": 0.0119,
"share_within_1.5pp": 0.0216,
"median_diff_pp": -30.01,
"mean_diff_pp": -31.06,
"p10": -68.65,
"p90": 2.47
}
}
},
"2025_val_chronic_absent_hs_all": {
"n_snapshot_values": 407,
"n_snapshot_values_district": 377,
"n_snapshot_values_charter": 28,
"n_snapshot_values_no_served_row_same_year": 2,
"candidates": {
"schoolwide_same_year_2024-25": {
"n": 405,
"share_within_0.5pp": 0.0123,
"share_within_1.0pp": 0.0148,
"share_within_1.5pp": 0.0198,
"median_diff_pp": -19.64,
"mean_diff_pp": -18.38,
"p10": -59.93,
"p90": 23.59
},
"schoolwide_prior_year_2023-24": {
"n": 405,
"share_within_0.5pp": 0.0074,
"share_within_1.0pp": 0.0198,
"share_within_1.5pp": 0.0321,
"median_diff_pp": -17.16,
"mean_diff_pp": -17.37,
"p10": -57.84,
"p90": 22.32
},
"schoolwide_two_prior_2022-23": {
"n": 404,
"share_within_0.5pp": 0.0149,
"share_within_1.0pp": 0.0173,
"share_within_1.5pp": 0.0297,
"median_diff_pp": -14.83,
"mean_diff_pp": -16.61,
"p10": -57.27,
"p90": 22.47
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"band_9-12_same_year_2024-25": {
"n": 377,
"share_within_0.5pp": 0.0106,
"share_within_1.0pp": 0.0133,
"share_within_1.5pp": 0.0159,
"median_diff_pp": -19.64,
"mean_diff_pp": -19.24,
"p10": -60.21,
"p90": 20.7
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"band_9-12_prior_year_2023-24": {
"n": 377,
"share_within_0.5pp": 0.0106,
"share_within_1.0pp": 0.0292,
"share_within_1.5pp": 0.0371,
"median_diff_pp": -17.67,
"mean_diff_pp": -18.27,
"p10": -56.67,
"p90": 20.96
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}
}
},
"ems_vs_hs_same_school": {
"n_schools_with_both": 0,
"n_equal": 0,
"n_differ": 0,
"examples": []
}
},
"charter_census": {
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"per_year": {
"2018-19": {
"n_compared": 132,
"share_within_0.5pp": 0.1288,
"share_within_1.0pp": 0.25,
"share_within_1.5pp": 0.3485,
"n_within_1.5pp": 46,
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"below_-5pp": 19,
"-5_to_-2": 39,
"-2_to_-1": 21,
"within_±1": 33,
"+1_to_+2": 4,
"+2_to_+5": 8,
"above_+5": 8
},
"n": 132,
"weighted_diff_pp": -1.87,
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"sd": 9.32
},
"diff_pp": {
"mean": -2.306,
"median": -1.534,
"sd": 9.32,
"p10": -6.94,
"p90": 3.21,
"min": -87.796,
"max": 25.898,
"p1": -27.945,
"p99": 14.889
},
"weighted_aggregate": {
"n_with_denominator": 132,
"sum_denominator": 69923.0,
"served_rate_pct": 17.06,
"snapshot_rate_pct": 18.93,
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"rate_correlation": 0.6928,
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"n_snapshot_missing": 32,
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"n_compared": 211,
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"share_within_1.5pp": 0.3886,
"n_within_1.5pp": 82,
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"below_-5pp": 7,
"-5_to_-2": 16,
"-2_to_-1": 16,
"within_±1": 61,
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"+2_to_+5": 26,
"above_+5": 63
},
"n": 211,
"weighted_diff_pp": 5.66,
"mean": 6.759,
"sd": 16.775
},
"diff_pp": {
"mean": 6.759,
"median": 1.068,
"sd": 16.775,
"p10": -2.177,
"p90": 22.02,
"min": -19.741,
"max": 93.431,
"p1": -14.669,
"p99": 71.9
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"weighted_aggregate": {
"n_with_denominator": 211,
"sum_denominator": 109521.0,
"served_rate_pct": 27.75,
"snapshot_rate_pct": 22.09,
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"rate_correlation": 0.7416,
"n_served": 241,
"n_snapshot_missing": 30,
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}
},
"2021-22": {
"n_compared": 224,
"share_within_0.5pp": 0.1384,
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"buckets_pp": {
"below_-5pp": 4,
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"-2_to_-1": 9,
"within_±1": 55,
"+1_to_+2": 26,
"+2_to_+5": 40,
"above_+5": 85
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"n": 224,
"weighted_diff_pp": 9.17,
"mean": 8.591,
"sd": 14.709
},
"diff_pp": {
"mean": 8.591,
"median": 2.403,
"sd": 14.709,
"p10": -0.761,
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"weighted_aggregate": {
"n_with_denominator": 224,
"sum_denominator": 120857.0,
"served_rate_pct": 41.0,
"snapshot_rate_pct": 31.82,
"diff_pp": 9.17
},
"rate_correlation": 0.7575,
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"no_year": 22
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},
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"n_compared": 229,
"share_within_0.5pp": 0.179,
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"share_within_1.5pp": 0.4323,
"n_within_1.5pp": 99,
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"below_-5pp": 4,
"-5_to_-2": 26,
"-2_to_-1": 18,
"within_±1": 73,
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"+2_to_+5": 36,
"above_+5": 45
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"n": 229,
"weighted_diff_pp": 3.97,
"mean": 4.2,
"sd": 11.933
},
"diff_pp": {
"mean": 4.2,
"median": 0.709,
"sd": 11.933,
"p10": -2.291,
"p90": 13.968,
"min": -5.992,
"max": 92.0,
"p1": -5.534,
"p99": 64.67
},
"weighted_aggregate": {
"n_with_denominator": 229,
"sum_denominator": 118433.0,
"served_rate_pct": 35.63,
"snapshot_rate_pct": 31.65,
"diff_pp": 3.97
},
"rate_correlation": 0.807,
"n_served": 239,
"n_snapshot_missing": 10,
"snapshot_missing_breakdown": {
"no_year": 10
}
}
},
"pooled": {
"n_compared": 796,
"share_within_0.5pp": 0.157,
"share_within_1.0pp": 0.2789,
"share_within_1.5pp": 0.3781,
"n_within_1.5pp": 301,
"distribution": {
"buckets_pp": {
"below_-5pp": 34,
"-5_to_-2": 86,
"-2_to_-1": 64,
"within_±1": 222,
"+1_to_+2": 79,
"+2_to_+5": 110,
"above_+5": 201
},
"n": 796,
"weighted_diff_pp": 4.94,
"mean": 5.035,
"sd": 14.271
},
"diff_pp": {
"mean": 5.035,
"median": 0.89,
"sd": 14.271,
"p10": -2.887,
"p90": 17.339,
"min": -87.796,
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"p1": -10.201,
"p99": 69.381
},
"weighted_aggregate": {
"n_with_denominator": 796,
"sum_denominator": 418734.0,
"served_rate_pct": 32.02,
"snapshot_rate_pct": 27.08,
"diff_pp": 4.94
},
"rate_correlation": 0.7752,
"n_served": 890,
"n_snapshot_missing": 94,
"snapshot_missing_breakdown": {
"no_year": 72,
"null_var": 22
}
},
"worst_15": [
{
"dbn": "84X419",
"name": "Bronx Academy of Promise Charter School",
"year": "2020-21",
"served": 99.43,
"snapshot": 6.0,
"denominator": 527.0,
"diff": 93.43
},
{
"dbn": "84K927",
"name": "Ivy Hill Preparatory Charter School",
"year": "2022-23",
"served": 100.0,
"snapshot": 8.0,
"denominator": 155.0,
"diff": 92.0
},
{
"dbn": "84M433",
"name": "Renaissance Charter High School for Innovation",
"year": "2018-19",
"served": 0.2,
"snapshot": 88.0,
"denominator": 489.0,
"diff": -87.8
},
{
"dbn": "84X538",
"name": "Icahn Charter School 5",
"year": "2020-21",
"served": 100.0,
"snapshot": 13.0,
"denominator": 290.0,
"diff": 87.0
},
{
"dbn": "84X362",
"name": "Icahn Charter School 7",
"year": "2022-23",
"served": 100.0,
"snapshot": 21.0,
"denominator": 298.0,
"diff": 79.0
},
{
"dbn": "84Q387",
"name": "Valence College Preparatory Charter School",
"year": "2021-22",
"served": 80.95,
"snapshot": 3.0,
"denominator": 357.0,
"diff": 77.95
},
{
"dbn": "84X387",
"name": "Brilla College Prep Charter School",
"year": "2022-23",
"served": 99.45,
"snapshot": 26.0,
"denominator": 721.0,
"diff": 73.45
},
{
"dbn": "84X492",
"name": "South Bronx Early College Academy Charter School",
"year": "2020-21",
"served": 100.0,
"snapshot": 28.0,
"denominator": 306.0,
"diff": 72.0
},
{
"dbn": "84X124",
"name": "Children's Aid College Prep Charter School",
"year": "2020-21",
"served": 100.0,
"snapshot": 29.0,
"denominator": 556.0,
"diff": 71.0
},
{
"dbn": "84X387",
"name": "Brilla College Prep Charter School",
"year": "2021-22",
"served": 98.3,
"snapshot": 29.0,
"denominator": 704.0,
"diff": 69.3
},
{
"dbn": "84X364",
"name": "South Bronx Classical Charter School II",
"year": "2020-21",
"served": 82.55,
"snapshot": 15.0,
"denominator": 298.0,
"diff": 67.55
},
{
"dbn": "84X346",
"name": "South Bronx Classical Charter School",
"year": "2020-21",
"served": 79.16,
"snapshot": 13.0,
"denominator": 427.0,
"diff": 66.16
},
{
"dbn": "84M338",
"name": "WHIN Music Community",
"year": "2020-21",
"served": 70.29,
"snapshot": 5.0,
"denominator": 175.0,
"diff": 65.29
},
{
"dbn": "84K652",
"name": "Brooklyn Ascend Charter School",
"year": "2021-22",
"served": 83.94,
"snapshot": 21.0,
"denominator": 1476.0,
"diff": 62.94
},
{
"dbn": "84X586",
"name": "Brilla Veritas Charter School",
"year": "2021-22",
"served": 98.64,
"snapshot": 37.0,
"denominator": 369.0,
"diff": 61.64
}
]
},
"band_basis_test": {
"note": "Candidate = served grade-band rate (K-8 for schools cached under the EMS report, 9-12 for HS-report schools; report type read from data/reference/snapshot/<type>/<reportYear>/ file presence, EMS preferred for the few dual-cached schools). diff = candidate - snapshot.",
"ems_hs_cache_overlap_dbn_years": 25,
"per_year": {
"2018-19": {
"schoolwide": {
"n": 1321,
"share_within_0.5pp": 0.2869,
"share_within_1.0pp": 0.4913,
"share_within_1.5pp": 0.6419,
"median_diff_pp": 0.672,
"mean_diff_pp": 0.647,
"sd": 2.368,
"p10": -0.98,
"p90": 2.92
},
"band_by_report_type": {
"n": 1320,
"share_within_0.5pp": 0.3856,
"share_within_1.0pp": 0.6394,
"share_within_1.5pp": 0.8182,
"median_diff_pp": 0.282,
"mean_diff_pp": 0.304,
"sd": 1.646,
"p10": -1.0,
"p90": 1.75
}
},
"2019-20": {
"schoolwide": {
"n": 1309,
"share_within_0.5pp": 0.2949,
"share_within_1.0pp": 0.4736,
"share_within_1.5pp": 0.6127,
"median_diff_pp": 0.864,
"mean_diff_pp": 0.906,
"sd": 2.023,
"p10": -0.45,
"p90": 2.93
},
"band_by_report_type": {
"n": 1309,
"share_within_0.5pp": 0.5019,
"share_within_1.0pp": 0.7257,
"share_within_1.5pp": 0.8121,
"median_diff_pp": 0.334,
"mean_diff_pp": 0.583,
"sd": 1.142,
"p10": -0.46,
"p90": 2.2
}
},
"2020-21": {
"schoolwide": {
"n": 1305,
"share_within_0.5pp": 0.4575,
"share_within_1.0pp": 0.6835,
"share_within_1.5pp": 0.7824,
"median_diff_pp": 0.152,
"mean_diff_pp": 0.129,
"sd": 1.992,
"p10": -1.24,
"p90": 1.84
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"band_by_report_type": {
"n": 1305,
"share_within_0.5pp": 0.6368,
"share_within_1.0pp": 0.8667,
"share_within_1.5pp": 0.9257,
"median_diff_pp": 0.018,
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"sd": 1.115,
"p10": -0.73,
"p90": 0.8
}
},
"2021-22": {
"schoolwide": {
"n": 1310,
"share_within_0.5pp": 0.2954,
"share_within_1.0pp": 0.4725,
"share_within_1.5pp": 0.5756,
"median_diff_pp": 0.92,
"mean_diff_pp": 1.026,
"sd": 2.079,
"p10": -0.45,
"p90": 3.13
},
"band_by_report_type": {
"n": 1310,
"share_within_0.5pp": 0.5321,
"share_within_1.0pp": 0.7298,
"share_within_1.5pp": 0.8191,
"median_diff_pp": 0.263,
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"sd": 1.465,
"p10": -0.5,
"p90": 1.99
}
},
"2022-23": {
"schoolwide": {
"n": 1325,
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"share_within_1.0pp": 0.5668,
"share_within_1.5pp": 0.6551,
"median_diff_pp": 0.604,
"mean_diff_pp": 0.958,
"sd": 2.059,
"p10": -0.42,
"p90": 3.45
},
"band_by_report_type": {
"n": 1325,
"share_within_0.5pp": 0.6279,
"share_within_1.0pp": 0.877,
"share_within_1.5pp": 0.9442,
"median_diff_pp": 0.214,
"mean_diff_pp": 0.202,
"sd": 0.987,
"p10": -0.45,
"p90": 0.96
}
}
},
"pooled": {
"schoolwide": {
"n": 6570,
"share_within_0.5pp": 0.3422,
"share_within_1.0pp": 0.5374,
"share_within_1.5pp": 0.6534,
"median_diff_pp": 0.601,
"mean_diff_pp": 0.734,
"sd": 2.134,
"p10": -0.69,
"p90": 2.97
},
"band_by_report_type": {
"n": 6569,
"share_within_0.5pp": 0.5368,
"share_within_1.0pp": 0.7677,
"share_within_1.5pp": 0.8639,
"median_diff_pp": 0.211,
"mean_diff_pp": 0.318,
"sd": 1.307,
"p10": -0.6,
"p90": 1.59
}
},
"by_report_type": {
"EMS": {
"n": 4658,
"share_within_0.5pp": 0.608,
"share_within_1.0pp": 0.845,
"share_within_1.5pp": 0.9223,
"median_diff_pp": 0.154,
"mean_diff_pp": 0.176,
"sd": 1.241,
"p10": -0.56,
"p90": 1.06
},
"HS": {
"n": 1911,
"share_within_0.5pp": 0.3632,
"share_within_1.0pp": 0.5793,
"share_within_1.5pp": 0.7216,
"median_diff_pp": 0.484,
"mean_diff_pp": 0.665,
"sd": 1.396,
"p10": -0.72,
"p90": 2.4
}
},
"by_report_type_per_year": {
"2018-19": {
"EMS": {
"n": 940,
"share_within_0.5pp": 0.4043,
"share_within_1.0pp": 0.6511,
"share_within_1.5pp": 0.8255,
"median_diff_pp": 0.314,
"mean_diff_pp": 0.332,
"sd": 1.783,
"p10": -0.88,
"p90": 1.77
},
"HS": {
"n": 380,
"share_within_0.5pp": 0.3395,
"share_within_1.0pp": 0.6105,
"share_within_1.5pp": 0.8,
"median_diff_pp": 0.207,
"mean_diff_pp": 0.234,
"sd": 1.242,
"p10": -1.2,
"p90": 1.67
}
},
"2019-20": {
"EMS": {
"n": 921,
"share_within_0.5pp": 0.6471,
"share_within_1.0pp": 0.9045,
"share_within_1.5pp": 0.9501,
"median_diff_pp": 0.157,
"mean_diff_pp": 0.174,
"sd": 0.782,
"p10": -0.52,
"p90": 0.85
},
"HS": {
"n": 388,
"share_within_0.5pp": 0.1572,
"share_within_1.0pp": 0.3015,
"share_within_1.5pp": 0.4845,
"median_diff_pp": 1.559,
"mean_diff_pp": 1.554,
"sd": 1.269,
"p10": -0.04,
"p90": 3.19
}
},
"2020-21": {
"EMS": {
"n": 920,
"share_within_0.5pp": 0.662,
"share_within_1.0pp": 0.8946,
"share_within_1.5pp": 0.9424,
"median_diff_pp": 0.051,
"mean_diff_pp": 0.101,
"sd": 0.91,
"p10": -0.59,
"p90": 0.78
},
"HS": {
"n": 385,
"share_within_0.5pp": 0.5766,
"share_within_1.0pp": 0.8,
"share_within_1.5pp": 0.8857,
"median_diff_pp": -0.095,
"mean_diff_pp": -0.054,
"sd": 1.491,
"p10": -1.12,
"p90": 0.91
}
},
"2021-22": {
"EMS": {
"n": 930,
"share_within_0.5pp": 0.6839,
"share_within_1.0pp": 0.8968,
"share_within_1.5pp": 0.9538,
"median_diff_pp": 0.069,
"mean_diff_pp": 0.052,
"sd": 1.363,
"p10": -0.55,
"p90": 0.75
},
"HS": {
"n": 380,
"share_within_0.5pp": 0.1605,
"share_within_1.0pp": 0.3211,
"share_within_1.5pp": 0.4895,
"median_diff_pp": 1.488,
"mean_diff_pp": 1.41,
"sd": 1.244,
"p10": -0.1,
"p90": 2.79
}
},
"2022-23": {
"EMS": {
"n": 947,
"share_within_0.5pp": 0.6452,
"share_within_1.0pp": 0.8807,
"share_within_1.5pp": 0.9409,
"median_diff_pp": 0.223,
"mean_diff_pp": 0.216,
"sd": 1.075,
"p10": -0.39,
"p90": 0.95
},
"HS": {
"n": 378,
"share_within_0.5pp": 0.5847,
"share_within_1.0pp": 0.8677,
"share_within_1.5pp": 0.9524,
"median_diff_pp": 0.157,
"mean_diff_pp": 0.167,
"sd": 0.721,
"p10": -0.64,
"p90": 0.97
}
}
}
},
"a7_complement_interpretation": {
"note": "Interpretation tested: val_chronic_absent_{ems,hs}_all = 100 - (chronic absenteeism rate). diff = candidate_served - (100 - snapshot_value). Whole-percent snapshot values.",
"results": {
"2024_val_chronic_absent_ems_all": {
"n_snapshot_values": 1092,
"candidates": {
"schoolwide_same_year_2023-24": {
"n": 1085,
"share_within_0.5pp": 0.412,
"share_within_1.0pp": 0.5429,
"share_within_1.5pp": 0.6396,
"median_diff_pp": 0.548,
"mean_diff_pp": 2.265,
"sd": 7.826,
"p10": -0.33,
"p90": 4.13
},
"schoolwide_prior_year_2022-23": {
"n": 1083,
"share_within_0.5pp": 0.0748,
"share_within_1.0pp": 0.1413,
"share_within_1.5pp": 0.2124,
"median_diff_pp": 2.907,
"mean_diff_pp": 3.051,
"sd": 7.764,
"p10": -3.69,
"p90": 9.7
},
"band_K-8_same_year_2023-24": {
"n": 931,
"share_within_0.5pp": 0.8797,
"share_within_1.0pp": 0.9581,
"share_within_1.5pp": 0.971,
"median_diff_pp": 0.048,
"mean_diff_pp": 0.063,
"sd": 0.613,
"p10": -0.37,
"p90": 0.48
},
"band_K-8_prior_year_2022-23": {
"n": 931,
"share_within_0.5pp": 0.0806,
"share_within_1.0pp": 0.16,
"share_within_1.5pp": 0.2342,
"median_diff_pp": 1.798,
"mean_diff_pp": 1.371,
"sd": 5.286,
"p10": -4.38,
"p90": 7.41
},
"band_1-8_same_year_2023-24": {
"n": 931,
"share_within_0.5pp": 0.3179,
"share_within_1.0pp": 0.4672,
"share_within_1.5pp": 0.6101,
"median_diff_pp": -0.974,
"mean_diff_pp": -1.077,
"sd": 1.505,
"p10": -2.96,
"p90": 0.45
},
"band_PK-8_same_year_2023-24": {
"n": 931,
"share_within_0.5pp": 0.4307,
"share_within_1.0pp": 0.5704,
"share_within_1.5pp": 0.6735,
"median_diff_pp": 0.508,
"mean_diff_pp": 1.018,
"sd": 1.623,
"p10": -0.32,
"p90": 3.27
}
}
},
"2024_val_chronic_absent_hs_all": {
"n_snapshot_values": 415,
"candidates": {
"schoolwide_same_year_2023-24": {
"n": 413,
"share_within_0.5pp": 0.7433,
"share_within_1.0pp": 0.8063,
"share_within_1.5pp": 0.8184,
"median_diff_pp": -0.021,
"mean_diff_pp": 0.094,
"sd": 5.952,
"p10": -3.06,
"p90": 0.49
},
"schoolwide_prior_year_2022-23": {
"n": 412,
"share_within_0.5pp": 0.0607,
"share_within_1.0pp": 0.1262,
"share_within_1.5pp": 0.1869,
"median_diff_pp": 0.891,
"mean_diff_pp": 0.961,
"sd": 8.265,
"p10": -8.04,
"p90": 8.83
},
"band_9-12_same_year_2023-24": {
"n": 385,
"share_within_0.5pp": 0.8857,
"share_within_1.0pp": 0.9584,
"share_within_1.5pp": 0.974,
"median_diff_pp": 0.059,
"mean_diff_pp": 0.027,
"sd": 0.565,
"p10": -0.39,
"p90": 0.48
},
"band_9-12_prior_year_2022-23": {
"n": 385,
"share_within_0.5pp": 0.0571,
"share_within_1.0pp": 0.1273,
"share_within_1.5pp": 0.1896,
"median_diff_pp": 1.826,
"mean_diff_pp": 1.168,
"sd": 6.421,
"p10": -6.47,
"p90": 8.63
}
}
},
"2025_val_chronic_absent_ems_all": {
"n_snapshot_values": 1095,
"candidates": {
"schoolwide_same_year_2024-25": {
"n": 1089,
"share_within_0.5pp": 0.4316,
"share_within_1.0pp": 0.573,
"share_within_1.5pp": 0.6768,
"median_diff_pp": 0.5,
"mean_diff_pp": 1.449,
"sd": 4.901,
"p10": -0.39,
"p90": 3.36
},
"schoolwide_prior_year_2023-24": {
"n": 1079,
"share_within_0.5pp": 0.0686,
"share_within_1.0pp": 0.1594,
"share_within_1.5pp": 0.2234,
"median_diff_pp": 2.39,
"mean_diff_pp": 3.596,
"sd": 9.44,
"p10": -3.06,
"p90": 9.57
},
"band_K-8_same_year_2024-25": {
"n": 926,
"share_within_0.5pp": 0.879,
"share_within_1.0pp": 0.96,
"share_within_1.5pp": 0.9665,
"median_diff_pp": 0.089,
"mean_diff_pp": 0.061,
"sd": 0.605,
"p10": -0.38,
"p90": 0.5
},
"band_K-8_prior_year_2023-24": {
"n": 926,
"share_within_0.5pp": 0.0918,
"share_within_1.0pp": 0.1922,
"share_within_1.5pp": 0.2743,
"median_diff_pp": 1.335,
"mean_diff_pp": 1.367,
"sd": 4.667,
"p10": -3.71,
"p90": 6.66
},
"band_1-8_same_year_2024-25": {
"n": 926,
"share_within_0.5pp": 0.3575,
"share_within_1.0pp": 0.5162,
"share_within_1.5pp": 0.6447,
"median_diff_pp": -0.771,
"mean_diff_pp": -0.985,
"sd": 1.37,
"p10": -2.78,
"p90": 0.42
},
"band_PK-8_same_year_2024-25": {
"n": 926,
"share_within_0.5pp": 0.4514,
"share_within_1.0pp": 0.5994,
"share_within_1.5pp": 0.7009,
"median_diff_pp": 0.492,
"mean_diff_pp": 0.874,
"sd": 1.616,
"p10": -0.37,
"p90": 2.96
}
}
},
"2025_val_chronic_absent_hs_all": {
"n_snapshot_values": 407,
"candidates": {
"schoolwide_same_year_2024-25": {
"n": 405,
"share_within_0.5pp": 0.7704,
"share_within_1.0pp": 0.8173,
"share_within_1.5pp": 0.8395,
"median_diff_pp": -0.035,
"mean_diff_pp": 0.337,
"sd": 7.727,
"p10": -2.41,
"p90": 0.45
},
"schoolwide_prior_year_2023-24": {
"n": 405,
"share_within_0.5pp": 0.0642,
"share_within_1.0pp": 0.1481,
"share_within_1.5pp": 0.2272,
"median_diff_pp": 0.537,
"mean_diff_pp": 1.349,
"sd": 9.953,
"p10": -7.47,
"p90": 10.01
},
"band_9-12_same_year_2024-25": {
"n": 377,
"share_within_0.5pp": 0.9098,
"share_within_1.0pp": 0.9682,
"share_within_1.5pp": 0.9814,
"median_diff_pp": 0.031,
"mean_diff_pp": 0.056,
"sd": 0.466,
"p10": -0.35,
"p90": 0.45
},
"band_9-12_prior_year_2023-24": {
"n": 377,
"share_within_0.5pp": 0.0743,
"share_within_1.0pp": 0.1565,
"share_within_1.5pp": 0.2414,
"median_diff_pp": 0.712,
"mean_diff_pp": 1.023,
"sd": 6.74,
"p10": -6.3,
"p90": 8.19
}
}
}
}
},
"hand_verifications": [
{
"case": "01M015 P.S. 015 Roberto Clemente — report year 2023 (SY 2022-23), EMS report, old varname",
"raw_source": "public-school-attendance-results-2019-2025.xlsx, All Students: All Grades contributing=206, CA=104 -> 104/206=50.4854%; K-8 (K,1-5; no 6-8 grades served): contributing 37+34+28+33+25+36=193, CA 16+21+11+14+16+16=94 -> 94/193=48.705%; PK row: 13 contributing, 10 CA (76.9%)",
"served_db": {
"value": 50.48543549,
"denominator": 206
},
"snapshot_cache": "data/reference/snapshot/EMS/2023/01M015.json: student_chronic_absent='49%'; snapshot-values.json: 49.0",
"result": "served(school-wide) - snapshot = +1.49pp (inside ±1.5 by 0.01); K-8 rate 48.705 rounds to 49 = snapshot exactly. The +1.49 gap is the PK rows the school-wide rate includes."
},
{
"case": "28Q157 J.H.S. 157 Stephen A. Halsey — report year 2022 (SY 2021-22), HS report (no EMS cache file), old varname; worst diff in the census",
"raw_source": "xlsx All Students 2021-22: All Grades contributing=1624, CA=441 -> 27.155%; grade 9: contributing=35, CA=19 -> 19/35=54.286%",
"served_db": {
"value": 27.15517235,
"denominator": 1624
},
"snapshot_cache": "data/reference/snapshot/HS/2022/28Q157.json: student_chronic_absent='54%' (cavg=42%); snapshot-values.json: 54.0",
"result": "served - snapshot = -26.84pp. Snapshot 54 = the school's grade-9 rate (54.29 -> 54), n=35 students - the school was served the HS report and the HS report's CA is a grades-9-12 figure, not school-wide."
},
{
"case": "01M184 P.S. 184m Shuang Wen — report year 2024 (SY 2023-24), EMS report, renamed varname val_chronic_absent_ems_all",
"raw_source": "xlsx All Students 2023-24: All Grades contributing=746, CA=72 -> 9.651%; K-8 = All Grades minus PK(51 contributing, 11 CA): contributing 695, CA 61 -> 61/695=8.777%; 100-8.777=91.22",
"served_db": {
"value": 9.651474953,
"denominator": 746
},
"snapshot_cache": "data/reference/snapshot/EMS/2024/01M184.json: val_chronic_absent_ems_all='91%' (pavg_chronic_absent_ems_all='89%'); snapshot-values.json: 91.0",
"result": "100 - K-8 rate = 91.22 rounds to 91 = snapshot exactly; the raw value (91) matches no CA rate, which is why the A.7 4-school check found no adjacent-year match."
}
],
"verdicts": {
"A6_sample_confirmed": "Yes. Census pooled agreement at ±1.5pp = 0.6534 (4293/6570) vs the 300-school sample's 0.6651 (141/212). Per-year range 0.5756 (2021-22) to 0.7824 (2020-21) — the sample pooled years, hiding real year-to-year spread.",
"A6_tail": "The sample's -12..+7.7pp mismatch range was NOT the full tail: census min/max = -26.84/+15.83pp (p1 -7.09, p99 +5.72). 130 school-years below -5pp, 124 above +5pp.",
"A6_basis_narrowing": "Established: the Snapshot's student_chronic_absent tracks the GRADE-BAND rate, not the school-wide rate - K-8 (K-inclusive) for schools cached under the EMS report, 9-12 for HS-report schools, same school year. Replacing the school-wide candidate with the band candidate raises pooled agreement 0.6534 -> 0.8639, EMS 0.9223, and >=0.94 for EMS in ry2020-2023. Residual NOT established: HS ry2020 (w1.5 0.4845, median +1.56pp) and HS ry2022 (0.4895, +1.49pp) carry a one-sided level shift; ry2019 sits at 0.80-0.83 for both report types.",
"A7_verdict": "Resolved arithmetically: val_chronic_absent_{ems,hs}_all = round(100 - same-report-year grade-band chronic-absenteeism rate) (EMS: grades K-8, K-inclusive; HS: grades 9-12). Reconciliation at ±1.5pp: 0.9710/0.9740 (ry2024 EMS/HS) and 0.9665/0.9814 (ry2025). Raw-value candidates max out at 0.042 across 26 tested alignments - the prior 4-school 'matches neither year' result was an artifact of comparing the raw value instead of its complement. K-8 beats 1-8 (0.61-0.64) and PK-8 (0.67-0.70) decisively, consistent with A.19's K-inclusive observation. What the field is CALLED on the rendered page is not established from this data; only the numeric identity is.",
"charter_summary": "Descriptive only (basis mismatch; provenance with parallel agent): pooled agreement 0.3781 (301/796) at ±1.5pp, corr 0.775, weighted served-snapshot +4.94pp; heavy two-sided tail (235 school-years beyond ±5pp) including served values of exactly 100.0 vs snapshot 8-28."
},
"band_basis_panels": {
"added": "2026-06-10",
"note": "Distribution-of-agreement panels on the ESTABLISHED basis (CENSUS.md §3/§10), TYPE-MATCHED on the v2 per-report-type artifact: diff = served grade-band rate − snapshot (pp); every report-type value a school's feed carries is compared against ITS band — EMS feed value ↔ K-8 (K-inclusive), HS feed value ↔ 9-12, same school year — and band-spanning schools (both report pages fetched 2026-06-10) contribute BOTH pairs. District schools, varname student_chronic_absent, SY 2018-19..2022-23, school-years in the §1 compared set. Bucket convention = meta.bucket_convention. worst10 = largest |diff|; our_rate is the served BAND rate (not school-wide); band_denominator is the band's contributing-student sum. Supersedes the cache-presence/EMS-preferred tie-break panels (whose shares = band_basis_test, reproduced exactly before this rewrite by recensus_both_types.py; the 8 pooled-worst10 dual-cache report-type mismatches are replaced by their type-matched pairs).",
"diff_definition": "served band rate − snapshot, type-matched (pp)",
"panels": {
"pooled": {
"n": 6964,
"share_within_0.5pp": 0.5388,
"share_within_1.0pp": 0.7725,
"share_within_1.5pp": 0.8695,
"n_within_1.5pp": 6055,
"diff_pp": {
"mean": 0.335,
"median": 0.204,
"sd": 1.078,
"p10": -0.603,
"p90": 1.556,
"min": -15.023,
"max": 12.848,
"p1": -2.345,
"p99": 3.749
},
"distribution": {
"buckets_pp": {
"below_-5pp": 3,
"-5_to_-2": 101,
"-2_to_-1": 243,
"within_±1": 5380,
"+1_to_+2": 789,
"+2_to_+5": 430,
"above_+5": 18
},
"n": 6964,
"weighted_diff_pp": 0.34,
"mean": 0.335,
"sd": 1.078
},
"worst10": [
{
"dbn": "09X260",
"name": "Bronx Center for Science and Mathematics",
"sy": "2020-21",
"band": "9-12",
"our_rate": 54.98,
"snapshot_rate": 70.0,
"band_denominator": 442.0,
"diff": -15.02
},
{
"dbn": "08X452",
"name": "Gotham Collaborative High School",
"sy": "2020-21",
"band": "9-12",
"our_rate": 39.85,
"snapshot_rate": 27.0,
"band_denominator": 394.0,
"diff": 12.85
},
{
"dbn": "15K447",
"name": "The Math & Science Exploratory School",
"sy": "2020-21",
"band": "K-8",
"our_rate": 11.33,
"snapshot_rate": 2.0,
"band_denominator": 547.0,
"diff": 9.33
},
{
"dbn": "16K898",
"name": "The Brooklyn Green School",
"sy": "2018-19",
"band": "K-8",
"our_rate": 22.64,
"snapshot_rate": 14.0,
"band_denominator": 53.0,
"diff": 8.64
},
{
"dbn": "18K567",
"name": "Brooklyn Theatre Arts High School",
"sy": "2021-22",
"band": "9-12",
"our_rate": 48.81,
"snapshot_rate": 41.0,
"band_denominator": 252.0,
"diff": 7.81
},
{
"dbn": "29Q289",
"name": "Queens United Middle School",
"sy": "2021-22",
"band": "K-8",
"our_rate": 46.76,
"snapshot_rate": 39.0,
"band_denominator": 139.0,
"diff": 7.76
},
{
"dbn": "16K267",
"name": "M.S. 267 Math, Science & Technology",
"sy": "2020-21",
"band": "K-8",
"our_rate": 39.19,
"snapshot_rate": 32.0,
"band_denominator": 148.0,
"diff": 7.19
},
{
"dbn": "07X224",
"name": "P.S./I.S. 224",
"sy": "2020-21",
"band": "K-8",
"our_rate": 54.89,
"snapshot_rate": 48.0,
"band_denominator": 184.0,
"diff": 6.89
},
{
"dbn": "13K301",
"name": "Satellite East Middle School",
"sy": "2019-20",
"band": "K-8",
"our_rate": 44.62,
"snapshot_rate": 38.0,
"band_denominator": 65.0,
"diff": 6.62
},
{
"dbn": "02M290",
"name": "P.S. 290 Manhattan New School",
"sy": "2020-21",
"band": "K-8",
"our_rate": 10.28,
"snapshot_rate": 4.0,
"band_denominator": 457.0,
"diff": 6.28
}
]
},
"2018-19": {
"n": 1399,
"share_within_0.5pp": 0.386,
"share_within_1.0pp": 0.6433,
"share_within_1.5pp": 0.8213,
"n_within_1.5pp": 1149,
"diff_pp": {
"mean": 0.36,
"median": 0.273,
"sd": 1.191,
"p10": -0.992,
"p90": 1.76,
"min": -4.0,
"max": 8.642,
"p1": -2.366,
"p99": 3.902
},
"distribution": {
"buckets_pp": {
"below_-5pp": 0,
"-5_to_-2": 28,
"-2_to_-1": 110,
"within_±1": 900,
"+1_to_+2": 258,
"+2_to_+5": 99,
"above_+5": 4
},
"n": 1399,
"weighted_diff_pp": 0.32,
"mean": 0.36,
"sd": 1.191
},
"worst10": [
{
"dbn": "16K898",
"name": "The Brooklyn Green School",
"sy": "2018-19",
"band": "K-8",
"our_rate": 22.64,
"snapshot_rate": 14.0,
"band_denominator": 53.0,
"diff": 8.64
},
{
"dbn": "19K218",
"name": "J.H.S. 218 James P. Sinnott",
"sy": "2018-19",
"band": "K-8",
"our_rate": 46.94,
"snapshot_rate": 41.0,
"band_denominator": 343.0,
"diff": 5.94
},
{
"dbn": "18K588",
"name": "Middle School for Art and Philosophy",
"sy": "2018-19",
"band": "K-8",
"our_rate": 30.83,
"snapshot_rate": 25.0,
"band_denominator": 133.0,
"diff": 5.83
},
{
"dbn": "13K270",
"name": "P.S. 270 Johann DeKalb",
"sy": "2018-19",
"band": "K-8",
"our_rate": 47.79,
"snapshot_rate": 42.0,
"band_denominator": 113.0,
"diff": 5.79
},
{
"dbn": "10X459",
"name": "East Fordham Academy for the Arts",
"sy": "2018-19",
"band": "K-8",
"our_rate": 36.8,
"snapshot_rate": 32.0,
"band_denominator": 231.0,
"diff": 4.8
},
{
"dbn": "13K351",
"name": "The Urban Assembly Unison School",
"sy": "2018-19",
"band": "K-8",
"our_rate": 37.65,
"snapshot_rate": 33.0,
"band_denominator": 170.0,
"diff": 4.65
},
{
"dbn": "12X251",
"name": "Explorations Academy H.S.",
"sy": "2018-19",
"band": "9-12",
"our_rate": 56.49,
"snapshot_rate": 52.0,
"band_denominator": 370.0,
"diff": 4.49
},
{
"dbn": "10X549",
"name": "Discovery High School",
"sy": "2018-19",
"band": "9-12",
"our_rate": 30.42,
"snapshot_rate": 26.0,
"band_denominator": 378.0,
"diff": 4.42
},
{
"dbn": "23K298",
"name": "P.S. 298 Dr. Betty Shabazz",
"sy": "2018-19",
"band": "K-8",
"our_rate": 36.4,
"snapshot_rate": 32.0,
"band_denominator": 250.0,
"diff": 4.4
},
{
"dbn": "14K474",
"name": "PROGRESS High School for Professional Careers",
"sy": "2018-19",
"band": "9-12",
"our_rate": 57.25,
"snapshot_rate": 53.0,
"band_denominator": 559.0,
"diff": 4.25
}
]
},
"2019-20": {
"n": 1388,
"share_within_0.5pp": 0.5086,
"share_within_1.0pp": 0.7356,
"share_within_1.5pp": 0.8206,
"n_within_1.5pp": 1139,
"diff_pp": {
"mean": 0.557,
"median": 0.325,
"sd": 1.125,
"p10": -0.464,
"p90": 2.154,
"min": -4.238,
"max": 6.615,
"p1": -1.969,
"p99": 3.978
},
"distribution": {
"buckets_pp": {
"below_-5pp": 0,
"-5_to_-2": 14,
"-2_to_-1": 22,
"within_±1": 1021,
"+1_to_+2": 173,
"+2_to_+5": 157,
"above_+5": 1
},
"n": 1388,
"weighted_diff_pp": 0.5,
"mean": 0.557,
"sd": 1.125
},
"worst10": [
{
"dbn": "13K301",
"name": "Satellite East Middle School",
"sy": "2019-20",
"band": "K-8",
"our_rate": 44.62,
"snapshot_rate": 38.0,
"band_denominator": 65.0,
"diff": 6.62
},
{
"dbn": "17K751",
"name": "Academy for Health Careers",
"sy": "2019-20",
"band": "9-12",
"our_rate": 43.9,
"snapshot_rate": 39.0,
"band_denominator": 287.0,
"diff": 4.9
},
{
"dbn": "02M393",
"name": "Business Of Sports School",
"sy": "2019-20",
"band": "9-12",
"our_rate": 57.88,
"snapshot_rate": 53.0,
"band_denominator": 444.0,
"diff": 4.88
},
{
"dbn": "17K382",
"name": "Academy for College Preparation and Career Explora",
"sy": "2019-20",
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"weighted_diff_pp": -0.01,
"mean": -0.047,
"sd": 1.489
},
"worst10": [
{
"dbn": "09X260",
"name": "Bronx Center for Science and Mathematics",
"sy": "2020-21",
"band": "9-12",
"our_rate": 54.98,
"snapshot_rate": 70.0,
"band_denominator": 442.0,
"diff": -15.02
},
{
"dbn": "08X452",
"name": "Gotham Collaborative High School",
"sy": "2020-21",
"band": "9-12",
"our_rate": 39.85,
"snapshot_rate": 27.0,
"band_denominator": 394.0,
"diff": 12.85
},
{
"dbn": "18K566",
"name": "Brooklyn Community High School for Excellence and",
"sy": "2020-21",
"band": "9-12",
"our_rate": 73.02,
"snapshot_rate": 67.0,
"band_denominator": 215.0,
"diff": 6.02
},
{
"dbn": "17K537",
"name": "High School for Youth and Community Development at",
"sy": "2020-21",
"band": "9-12",
"our_rate": 47.76,
"snapshot_rate": 42.0,
"band_denominator": 492.0,
"diff": 5.76
},
{
"dbn": "07X670",
"name": "Health Opportunities High School",
"sy": "2020-21",
"band": "9-12",
"our_rate": 59.29,
"snapshot_rate": 54.0,
"band_denominator": 393.0,
"diff": 5.29
},
{
"dbn": "12X267",
"name": "Bronx Latin",
"sy": "2020-21",
"band": "9-12",
"our_rate": 35.56,
"snapshot_rate": 31.0,
"band_denominator": 315.0,
"diff": 4.56
},
{
"dbn": "02M308",
"name": "Lower Manhattan Arts Academy",
"sy": "2020-21",
"band": "9-12",
"our_rate": 54.25,
"snapshot_rate": 50.0,
"band_denominator": 341.0,
"diff": 4.25
},
{
"dbn": "23K493",
"name": "Brooklyn Collegiate: A College Board School",
"sy": "2020-21",
"band": "9-12",
"our_rate": 53.12,
"snapshot_rate": 49.0,
"band_denominator": 369.0,
"diff": 4.12
},
{
"dbn": "10X477",
"name": "Marble Hill High School for International Studies",
"sy": "2020-21",
"band": "9-12",
"our_rate": 29.31,
"snapshot_rate": 33.0,
"band_denominator": 447.0,
"diff": -3.69
},
{
"dbn": "02M519",
"name": "Talent Unlimited High School",
"sy": "2020-21",
"band": "9-12",
"our_rate": 70.69,
"snapshot_rate": 67.0,
"band_denominator": 522.0,
"diff": 3.69
}
]
},
"2021-22_HS": {
"n": 388,
"share_within_0.5pp": 0.1598,
"share_within_1.0pp": 0.3196,
"share_within_1.5pp": 0.4974,
"n_within_1.5pp": 193,
"diff_pp": {
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"median": 1.476,
"sd": 1.235,
"p10": -0.101,
"p90": 2.789,
"min": -5.176,
"max": 7.81,
"p1": -1.78,
"p99": 4.064
},
"distribution": {
"buckets_pp": {
"below_-5pp": 1,
"-5_to_-2": 3,
"-2_to_-1": 5,
"within_±1": 124,
"+1_to_+2": 139,
"+2_to_+5": 115,
"above_+5": 1
},
"n": 388,
"weighted_diff_pp": 1.43,
"mean": 1.403,
"sd": 1.235
},
"worst10": [
{
"dbn": "18K567",
"name": "Brooklyn Theatre Arts High School",
"sy": "2021-22",
"band": "9-12",
"our_rate": 48.81,
"snapshot_rate": 41.0,
"band_denominator": 252.0,
"diff": 7.81
},
{
"dbn": "18K637",
"name": "Academy for Conservation and the Environment",
"sy": "2021-22",
"band": "9-12",
"our_rate": 41.82,
"snapshot_rate": 47.0,
"band_denominator": 318.0,
"diff": -5.18
},
{
"dbn": "12X478",
"name": "The Cinema School",
"sy": "2021-22",
"band": "9-12",
"our_rate": 47.87,
"snapshot_rate": 43.0,
"band_denominator": 376.0,
"diff": 4.87
},
{
"dbn": "02M427",
"name": "Manhattan Academy For Arts & Language",
"sy": "2021-22",
"band": "9-12",
"our_rate": 55.32,
"snapshot_rate": 51.0,
"band_denominator": 235.0,
"diff": 4.32
},
{
"dbn": "12X388",
"name": "Pan American International High School at Monroe",
"sy": "2021-22",
"band": "9-12",
"our_rate": 51.71,
"snapshot_rate": 56.0,
"band_denominator": 381.0,
"diff": -4.29
},
{
"dbn": "17K531",
"name": "School for Human Rights, The",
"sy": "2021-22",
"band": "9-12",
"our_rate": 65.15,
"snapshot_rate": 61.0,
"band_denominator": 264.0,
"diff": 4.15
},
{
"dbn": "19K404",
"name": "Academy for Young Writers",
"sy": "2021-22",
"band": "9-12",
"our_rate": 72.05,
"snapshot_rate": 68.0,
"band_denominator": 390.0,
"diff": 4.05
},
{
"dbn": "28Q505",
"name": "Hillcrest High School",
"sy": "2021-22",
"band": "9-12",
"our_rate": 49.78,
"snapshot_rate": 46.0,
"band_denominator": 2079.0,
"diff": 3.78
},
{
"dbn": "17K546",
"name": "High School for Public Service: Heroes of Tomorrow",
"sy": "2021-22",
"band": "9-12",
"our_rate": 54.75,
"snapshot_rate": 51.0,
"band_denominator": 400.0,
"diff": 3.75
},
{
"dbn": "15K429",
"name": "Digital Arts and Cinema Technology High School",
"sy": "2021-22",
"band": "9-12",
"our_rate": 50.6,
"snapshot_rate": 47.0,
"band_denominator": 336.0,
"diff": 3.6
}
]
},
"2022-23_HS": {
"n": 386,
"share_within_0.5pp": 0.5829,
"share_within_1.0pp": 0.8679,
"share_within_1.5pp": 0.9534,
"n_within_1.5pp": 368,
"diff_pp": {
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"median": 0.153,
"sd": 0.721,
"p10": -0.661,
"p90": 0.974,
"min": -3.258,
"max": 2.821,
"p1": -1.774,
"p99": 2.027
},
"distribution": {
"buckets_pp": {
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"-5_to_-2": 4,
"-2_to_-1": 11,
"within_±1": 335,
"+1_to_+2": 32,
"+2_to_+5": 4,
"above_+5": 0
},
"n": 386,
"weighted_diff_pp": 0.18,
"mean": 0.163,
"sd": 0.721
},
"worst10": [
{
"dbn": "02M459",
"name": "Manhattan International High School",
"sy": "2022-23",
"band": "9-12",
"our_rate": 37.74,
"snapshot_rate": 41.0,
"band_denominator": 310.0,
"diff": -3.26
},
{
"dbn": "27Q480",
"name": "John Adams High School",
"sy": "2022-23",
"band": "9-12",
"our_rate": 36.12,
"snapshot_rate": 39.0,
"band_denominator": 2021.0,
"diff": -2.88
},
{
"dbn": "12X684",
"name": "Wings Academy",
"sy": "2022-23",
"band": "9-12",
"our_rate": 62.82,
"snapshot_rate": 60.0,
"band_denominator": 234.0,
"diff": 2.82
},
{
"dbn": "02M305",
"name": "Urban Assembly Academy of Government and Law, The",
"sy": "2022-23",
"band": "9-12",
"our_rate": 58.65,
"snapshot_rate": 56.0,
"band_denominator": 237.0,
"diff": 2.65
},
{
"dbn": "18K642",
"name": "Urban Action Academy",
"sy": "2022-23",
"band": "9-12",
"our_rate": 41.46,
"snapshot_rate": 44.0,
"band_denominator": 123.0,
"diff": -2.54
},
{
"dbn": "28Q157",
"name": "J.H.S. 157 Stephen A. Halsey",
"sy": "2022-23",
"band": "9-12",
"our_rate": 41.38,
"snapshot_rate": 39.0,
"band_denominator": 29.0,
"diff": 2.38
},
{
"dbn": "08X561",
"name": "Bronx Compass High School",
"sy": "2022-23",
"band": "9-12",
"our_rate": 54.66,
"snapshot_rate": 57.0,
"band_denominator": 322.0,
"diff": -2.34
},
{
"dbn": "06M467",
"name": "High School for Law and Public Service",
"sy": "2022-23",
"band": "9-12",
"our_rate": 60.26,
"snapshot_rate": 58.0,
"band_denominator": 380.0,
"diff": 2.26
},
{
"dbn": "18K637",
"name": "Academy for Conservation and the Environment",
"sy": "2022-23",
"band": "9-12",
"our_rate": 21.99,
"snapshot_rate": 20.0,
"band_denominator": 423.0,
"diff": 1.99
},
{
"dbn": "04M372",
"name": "Esperanza Preparatory Academy",
"sy": "2022-23",
"band": "9-12",
"our_rate": 34.97,
"snapshot_rate": 33.0,
"band_denominator": 366.0,
"diff": 1.97
}
]
}
}
},
"decoded_2024_2025_panels": {
"added": "2026-06-10",
"note": "Distribution panels for the DECODED 2024/2025 renamed varnames (A.7), TYPE-MATCHED on the v2 artifact: diff = served band rate − (100 − feed value); the EMS report's val_chronic_absent_ems_all ↔ K-8 (K-inclusive), the HS report's val_chronic_absent_hs_all ↔ 9-12; sy = the same school year as the reportYear (2024 ↔ 2023-24, 2025 ↔ 2024-25). Band-spanning schools contribute both pairs. worst10 rows carry feed_value — these are exactly the schools where even the complement decode fails.",
"diff_definition": "served band rate − (100 − feed value), type-matched (pp)",
"panels": {
"2024_EMS": {
"n": 1007,
"share_within_0.5pp": 0.8868,
"share_within_1.0pp": 0.9613,
"share_within_1.5pp": 0.9732,
"n_within_1.5pp": 980,
"diff_pp": {
"mean": 0.06,
"median": 0.048,
"sd": 0.594,
"p10": -0.37,
"p90": 0.479,
"min": -6.273,
"max": 4.552,
"p1": -1.557,
"p99": 2.234
},
"distribution": {
"buckets_pp": {
"below_-5pp": 1,
"-5_to_-2": 7,
"-2_to_-1": 11,
"within_±1": 968,
"+1_to_+2": 8,
"+2_to_+5": 12,
"above_+5": 0
},
"n": 1007,
"weighted_diff_pp": 0.07,
"mean": 0.06,
"sd": 0.594
},
"worst10": [
{
"dbn": "13K301",
"name": "Satellite East Middle School",
"sy": "2023-24",
"band": "K-8",
"our_rate": 47.73,
"snapshot_rate": 54.0,
"band_denominator": 88.0,
"diff": -6.27,
"feed_value": 46.0
},
{
"dbn": "07X584",
"name": "I.S. 584",
"sy": "2023-24",
"band": "K-8",
"our_rate": 36.55,
"snapshot_rate": 32.0,
"band_denominator": 145.0,
"diff": 4.55,
"feed_value": 68.0
},
{
"dbn": "07X224",
"name": "P.S./I.S. 224",
"sy": "2023-24",
"band": "K-8",
"our_rate": 43.23,
"snapshot_rate": 39.0,
"band_denominator": 155.0,
"diff": 4.23,
"feed_value": 61.0
},
{
"dbn": "09X117",
"name": "I.S. 117 Joseph H. Wade",
"sy": "2023-24",
"band": "K-8",
"our_rate": 47.96,
"snapshot_rate": 44.0,
"band_denominator": 269.0,
"diff": 3.96,
"feed_value": 56.0
},
{
"dbn": "25Q250",
"name": "I.S. 250 The Robert F. Kennedy Community Middle Sc",
"sy": "2023-24",
"band": "K-8",
"our_rate": 32.27,
"snapshot_rate": 36.0,
"band_denominator": 220.0,
"diff": -3.73,
"feed_value": 64.0
},
{
"dbn": "24Q330",
"name": "Helen M. Marshall School",
"sy": "2023-24",
"band": "K-8",
"our_rate": 34.39,
"snapshot_rate": 38.0,
"band_denominator": 474.0,
"diff": -3.61,
"feed_value": 62.0
},
{
"dbn": "15K821",
"name": "Sunset Park Prep",
"sy": "2023-24",
"band": "K-8",
"our_rate": 37.35,
"snapshot_rate": 34.0,
"band_denominator": 332.0,
"diff": 3.35,
"feed_value": 66.0
},
{
"dbn": "19K273",
"name": "P.S. 273 Wortman",
"sy": "2023-24",
"band": "K-8",
"our_rate": 53.14,
"snapshot_rate": 50.0,
"band_denominator": 239.0,
"diff": 3.14,
"feed_value": 50.0
},
{
"dbn": "03M247",
"name": "M.S. M247 Dual Language Middle School",
"sy": "2023-24",
"band": "K-8",
"our_rate": 41.98,
"snapshot_rate": 45.0,
"band_denominator": 162.0,
"diff": -3.02,
"feed_value": 55.0
},
{
"dbn": "11X287",
"name": "North Bronx School of Empowerment",
"sy": "2023-24",
"band": "K-8",
"our_rate": 40.07,
"snapshot_rate": 43.0,
"band_denominator": 287.0,
"diff": -2.93,
"feed_value": 57.0
}
]
},
"2024_HS": {
"n": 388,
"share_within_0.5pp": 0.8866,
"share_within_1.0pp": 0.9588,
"share_within_1.5pp": 0.9742,
"n_within_1.5pp": 378,
"diff_pp": {
"mean": 0.028,
"median": 0.059,
"sd": 0.564,
"p10": -0.39,
"p90": 0.483,
"min": -5.021,
"max": 2.683,
"p1": -2.118,
"p99": 1.383
},
"distribution": {
"buckets_pp": {
"below_-5pp": 1,
"-5_to_-2": 4,
"-2_to_-1": 3,
"within_±1": 372,
"+1_to_+2": 7,
"+2_to_+5": 1,
"above_+5": 0
},
"n": 388,
"weighted_diff_pp": 0.06,
"mean": 0.028,
"sd": 0.564
},
"worst10": [
{
"dbn": "15K462",
"name": "John Jay School for Law",
"sy": "2023-24",
"band": "9-12",
"our_rate": 43.98,
"snapshot_rate": 49.0,
"band_denominator": 382.0,
"diff": -5.02,
"feed_value": 51.0
},
{
"dbn": "15K667",
"name": "Sunset Park High School",
"sy": "2023-24",
"band": "9-12",
"our_rate": 38.59,
"snapshot_rate": 42.0,
"band_denominator": 1091.0,
"diff": -3.41,
"feed_value": 58.0
},
{
"dbn": "19K583",
"name": "Multicultural High School",
"sy": "2023-24",
"band": "9-12",
"our_rate": 39.14,
"snapshot_rate": 42.0,
"band_denominator": 304.0,
"diff": -2.86,
"feed_value": 58.0
},
{
"dbn": "02M280",
"name": "Manhattan Early College School for Advertising",
"sy": "2023-24",
"band": "9-12",
"our_rate": 54.68,
"snapshot_rate": 52.0,
"band_denominator": 331.0,
"diff": 2.68,
"feed_value": 48.0
},
{
"dbn": "06M463",
"name": "High School for Media and Communications",
"sy": "2023-24",
"band": "9-12",
"our_rate": 55.35,
"snapshot_rate": 58.0,
"band_denominator": 318.0,
"diff": -2.65,
"feed_value": 42.0
},
{
"dbn": "08X376",
"name": "Antonia Pantoja Preparatory Academy: A College Boa",
"sy": "2023-24",
"band": "9-12",
"our_rate": 58.96,
"snapshot_rate": 61.0,
"band_denominator": 212.0,
"diff": -2.04,
"feed_value": 39.0
},
{
"dbn": "12X388",
"name": "Pan American International High School at Monroe",
"sy": "2023-24",
"band": "9-12",
"our_rate": 43.93,
"snapshot_rate": 42.0,
"band_denominator": 387.0,
"diff": 1.93,
"feed_value": 58.0
},
{
"dbn": "20K445",
"name": "New Utrecht High School",
"sy": "2023-24",
"band": "9-12",
"our_rate": 33.88,
"snapshot_rate": 32.0,
"band_denominator": 2639.0,
"diff": 1.88,
"feed_value": 68.0
},
{
"dbn": "21K410",
"name": "Abraham Lincoln High School",
"sy": "2023-24",
"band": "9-12",
"our_rate": 50.34,
"snapshot_rate": 52.0,
"band_denominator": 1889.0,
"diff": -1.66,
"feed_value": 48.0
},
{
"dbn": "28Q440",
"name": "Forest Hills High School",
"sy": "2023-24",
"band": "9-12",
"our_rate": 22.58,
"snapshot_rate": 21.0,
"band_denominator": 2697.0,
"diff": 1.58,
"feed_value": 79.0
}
]
},
"2025_EMS": {
"n": 1001,
"share_within_0.5pp": 0.8831,
"share_within_1.0pp": 0.962,
"share_within_1.5pp": 0.968,
"n_within_1.5pp": 969,
"diff_pp": {
"mean": 0.057,
"median": 0.081,
"sd": 0.59,
"p10": -0.384,
"p90": 0.493,
"min": -4.429,
"max": 3.765,
"p1": -2.053,
"p99": 1.892
},
"distribution": {
"buckets_pp": {
"below_-5pp": 0,
"-5_to_-2": 11,
"-2_to_-1": 12,
"within_±1": 963,
"+1_to_+2": 5,
"+2_to_+5": 10,
"above_+5": 0
},
"n": 1001,
"weighted_diff_pp": 0.06,
"mean": 0.057,
"sd": 0.59
},
"worst10": [
{
"dbn": "08X302",
"name": "M.S. 302 Luisa Dessus Cruz",
"sy": "2024-25",
"band": "K-8",
"our_rate": 28.57,
"snapshot_rate": 33.0,
"band_denominator": 252.0,
"diff": -4.43,
"feed_value": 67.0
},
{
"dbn": "16K025",
"name": "P.S. 025 Eubie Blake School",
"sy": "2024-25",
"band": "K-8",
"our_rate": 55.77,
"snapshot_rate": 60.0,
"band_denominator": 52.0,
"diff": -4.23,
"feed_value": 40.0
},
{
"dbn": "32K349",
"name": "I.S. 349 Math, Science & Tech.",
"sy": "2024-25",
"band": "K-8",
"our_rate": 36.76,
"snapshot_rate": 33.0,
"band_denominator": 136.0,
"diff": 3.76,
"feed_value": 67.0
},
{
"dbn": "19K202",
"name": "P.S. 202 Ernest S. Jenkyns",
"sy": "2024-25",
"band": "K-8",
"our_rate": 63.68,
"snapshot_rate": 60.0,
"band_denominator": 201.0,
"diff": 3.68,
"feed_value": 40.0
},
{
"dbn": "21K228",
"name": "I.S. 228 David A. Boody",
"sy": "2024-25",
"band": "K-8",
"our_rate": 24.49,
"snapshot_rate": 28.0,
"band_denominator": 1086.0,
"diff": -3.51,
"feed_value": 72.0
},
{
"dbn": "04M038",
"name": "P.S. 38 Roberto Clemente",
"sy": "2024-25",
"band": "K-8",
"our_rate": 56.38,
"snapshot_rate": 53.0,
"band_denominator": 149.0,
"diff": 3.38,
"feed_value": 47.0
},
{
"dbn": "03M258",
"name": "Community Action School - MS 258",
"sy": "2024-25",
"band": "K-8",
"our_rate": 56.25,
"snapshot_rate": 53.0,
"band_denominator": 112.0,
"diff": 3.25,
"feed_value": 47.0
},
{
"dbn": "10X254",
"name": "I.S. 254",
"sy": "2024-25",
"band": "K-8",
"our_rate": 28.83,
"snapshot_rate": 32.0,
"band_denominator": 333.0,
"diff": -3.17,
"feed_value": 68.0
},
{
"dbn": "01M332",
"name": "University Neighborhood Middle School",
"sy": "2024-25",
"band": "K-8",
"our_rate": 64.15,
"snapshot_rate": 61.0,
"band_denominator": 106.0,
"diff": 3.15,
"feed_value": 39.0
},
{
"dbn": "02M001",
"name": "P.S. 001 Alfred E. Smith",
"sy": "2024-25",
"band": "K-8",
"our_rate": 57.14,
"snapshot_rate": 54.0,
"band_denominator": 161.0,
"diff": 3.14,
"feed_value": 46.0
}
]
},
"2025_HS": {
"n": 380,
"share_within_0.5pp": 0.9105,
"share_within_1.0pp": 0.9684,
"share_within_1.5pp": 0.9816,
"n_within_1.5pp": 373,
"diff_pp": {
"mean": 0.057,
"median": 0.032,
"sd": 0.465,
"p10": -0.354,
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