Chart Generation – Interim Data

POST/student-growth-interim: Generate a growth chart based on student interim assessment data.

Interim: This endpoint exclusively accepts interim Lexile and Quantile measures collected from periodic assessments administered throughout the school year. For each measure submitted, the following information must be included: the date the measure was obtained, the student’s grade at the time, and the school year start date for that grade. The Growth Planner API utilizes this data to project the student’s growth in reading and math by the end of grade 12, relative to college and career-ready or other defined targets.

Base URL: https://growth-planner-api.lexile.com/student-growth-interim

Given historical student performance (measurements, dates) on interim assessments, this API will generate a graph of their projected growth. No PII is required by the API, and no data is saved. Graphs can be generated for either the Lexile or Quantile measures, and in either English or Spanish.

The graph plots the student’s measure and predicts growth through 12th grade. Other optional visual graph indicators include a recommended growth path, applicable with College and Career Readiness Ranges. Custom targets or grade ranges, within the extended range of grades 3-12, are also supported. The graph is WCAG 2.1 AA compliant, and all information required for the generation of informative alt-text is in the response data. Clients should use this data to write their own alt-text.

Parameters

POST/authToken Retrieve an Auth Token for use with protected endpoints.

application/json

Sample request body for the Lexile scale.

{
  "scale": "lexile",
  "language": "english",
  "measures": [
    {
      "testDate": {
        "month": 3,
        "year": 2021
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2020
      },
      "grade": 4,
      "measure": 815
    },
    {
      "testDate": {
        "month": 3,
        "year": 2022
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2021
      },
      "grade": 5,
      "measure": 930
    },
    {
      "testDate": {
        "month": 3,
        "year": 2023
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2022
      },
      "grade": 6,
      "measure": 1040
    },
    {
      "testDate": {
        "month": 3,
        "year": 2024
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2023
      },
      "grade": 7,
      "measure": 1170
    }
  ],
  "additionalOptions": [
    "recommendedGrowthPath",
    "universityReadinessRange",
    "communityCollegeReadinessRange",
    "workplaceReadinessRange"
  ]
}

Sample request body for the Lexile scale with custom target ranges.

{
  "scale": "lexile",
  "language": "english",
  "measures": [
    {
      "testDate": {
        "month": 3,
        "year": 2021
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2020
      },
      "grade": 4,
      "measure": 815
    }
  ],
  "targetRanges": {
    "harderRange": {
      "max": {
        "value": 1500
      },
      "min": {
        "value": 1300
      },
      "label": "More Difficult Target"
    },
    "easierRange": {
      "max": {
        "value": 1300
      },
      "min": {
        "value": 1100
      },
      "label": "Less Difficult Target"
    }
  }
}

Sample request body for the Quantile scale.

{
  "scale": "quantile",
  "language": "english",
  "measures": [
    {
      "testDate": {
        "month": 3,
        "year": 2021
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2020
      },
      "grade": 4,
      "measure": 815
    },
    {
      "testDate": {
        "month": 3,
        "year": 2022
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2021
      },
      "grade": 5,
      "measure": 930
    },
    {
      "testDate": {
        "month": 3,
        "year": 2023
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2022
      },
      "grade": 6,
      "measure": 1040
    },
    {
      "testDate": {
        "month": 3,
        "year": 2024
      },
      "schoolYearStart": {
        "month": 8,
        "year": 2023
      },
      "grade": 7,
      "measure": 1170
    }
  ],
  "additionalOptions": [
    "recommendedGrowthPath",
    "advancedCollegeAndCareerReadinessRange",
    "fundamentalCollegeAndCareerReadinessRange",
    "limitedCollegeAndCareerReadinessRange"
  ]
}

Responses


Code	Description
`200`	Success Media Type: application/json Example Value / Schema `{ "finalEstimate": 1000, "finalTarget": 1000, "targetRanges": { "harderRange": { "max": { "value": 1500 }, "min": { "value": 1300 }, "label": "More Difficult Target" }, "easierRange": { "max": { "value": 1300 }, "min": { "value": 1100 }, "label": "Less Difficult Target" } }, "codes": [ "belowCCR" ], "finalMeasures": { "estimate": { "value": 1000, "display": "1000L" }, "target": { "value": 1200, "display": "1200L" } }, "chart": "string placeholder for brevity of base64-encoded chart." }`
`400`	Validation error response Media Type: application/json Example Value / Schema `{ "type": "validation_error", "errors": [ { "code": "required", "detail": "Scale is required", "attr": "scale" } ] }`
`401`	Client error response Media Type: application/json Example Value / Schema `{ "type": "client_error", "errors": [ { "code": "not_authenticated", "detail": "Authentication credentials were not provided.", "attr": null } ] }`
`500`	Server error response Media Type: application/json Example Value / Schema `{ "type": "server_error", "errors": [ { "code": "error", "detail": "A server error occurred.", "attr": null } ] }`