{
  "alt": "County map of the United States on a scale from brown for averages below the national average to teal for averages above it. Counties toward the high end of the scale cluster across the Northeast and the Midwest, and counties toward the low end are concentrated across the South, with others in Alaska and the Dakotas. Gray counties, including all of Virginia, have no average.",
  "caption": "Counties toward the high end of the key cluster in the Northeast and the Midwest, and counties toward the low end are concentrated in the South and include rural Alaska and parts of the Dakotas. The map plots each county's average of math and reading achievement on a scale centered on the national average, and the {fact:n_off_scale} counties more than {fact:scale_cap} grade levels away take the end colors of the key. The {fact:n_map_nodata} gray places have no average, and the tooltip gives the reason for each.",
  "data": [],
  "id": "scores_map",
  "notes": [
    "Virginia has no math estimates in the archive's sixth version, so its {fact:n_va} counties and independent cities have no average of math and reading. The District of Columbia has no county rows, and {fact:n_map_other} small counties have no average because the archive lists no estimate for them or no reading estimate. Puerto Rico is not drawn.",
    "Connecticut is drawn as its eight legacy counties, the codes SEDA uses. Valdez-Cordova Census Area in Alaska (split in 2019) is drawn on its two successors, Chugach and Copper River, with the one value SEDA reports.",
    "The archive reports empirical-Bayes estimates, which pull the figure for a place with few tests toward the average of similar places. Pooled results cover third through eighth grade and the school years 2009 to 2019."
  ],
  "source": "Stanford Education Data Archive 6.0, 2009-2019 (county averages for all students); modeled estimates, each county drawn once (unweighted)",
  "spec": {
    "fips": "fips",
    "legendLabel": "Average of math and reading achievement (grade levels from the national average)",
    "payload": "scores_map.json",
    "scale": {
      "domain": [
        -2,
        0,
        2
      ],
      "ends": [
        "Below the national average",
        "Above the national average"
      ],
      "palette": "div",
      "type": "diverging"
    },
    "tooltipKeys": [
      "math",
      "reading",
      "tests"
    ],
    "tooltipLabels": {
      "math": "Math (grade levels from the national average)",
      "reading": "Reading (grade levels from the national average)",
      "tests": "Tests counted (math and reading)"
    },
    "value": "ach",
    "valueFormat": {
      "digits": 1,
      "signed": true
    }
  },
  "subtitle": "Average of math and reading achievement in third through eighth grade, in grade levels above or below the national average, by county, 2009 to 2019 pooled",
  "title": "{fact:south_low_share} of the counties in the lowest tenth for average achievement are in the South, which holds {fact:south_all_share} of counties",
  "type": "county-map",
  "width": "full"
}