Assessment Scores

Key Concepts

The Scores element is used to capture student scores on an assessment. Most assessments will have several of these.

If we look at the original sample score report, we will see that the assessment has some aggregate scores that encapsulate overall performance on the benchmark. There is an overall score and a percentile, which also has a z-score. The Assessment.Score element captures data on the scores that will be provided.

Figure 1: scores on the sample score report

In this fictitious assessment, the overall score is just a typical percentage of items correct, so we can capture that as follows:

Score
    AssessmentReportingMethodType: Raw score
    MinimumScore: 0
    MaximumScore: 100
    ResultDatatypeType: Integer

The percentile score is a bit different, and would be represented as follows:

Score
    AssessmentReportingMethodType: Percentile
    MinimumScore: 1
    MaximumScore: 99
    ResultDatatypeType: Integer

There is a z-score (measures the percentile deviation from the mean) which we can capture as well[1]:

Score
    AssessmentReportingMethodType: Z-score
    MinimumScore: -10[1]
    MaximumScore: 10
    ResultDatatypeType: Decimal

The full JSON data – presented within the Assessment entity – would look at follows:

{
  "identifier": "3b82bbde-674f-4fc7-b431-57327d59266f",
  "namespace": "http://mathwhale.com",
  "title": "Benchmark 3 – Math 3rd/Common Core - Operations and Algebraic Thinking A.A",
  "revisionDate": "2018-01-01",
  "scores": [
    {
      "assessmentReportingMethodType": "Raw score",
      "resultDatatypeType": "Integer",
      "minimumScore": "0",
      "maximumScore": "100"
    },
    {
      "assessmentReportingMethodType": "Percentile",
      "resultDatatypeType": "Integer",
      "minimumScore": "1",
      "maximumScore": "99"
    },
    {
      "assessmentReportingMethodType": "Z-score",
      "resultDatatypeType": "Decimal",
      "minimumScore": "-10",
      "maximumScore": "10"
    },
  ]
}

In full disclosure, the author here is not statistics-sophisticated enough to know if it is possible to have z-score beyond this limit, but it would certainly be rare indeed. Please feel free send in suggestions for better limits here.