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Grade Boundary Needed Next Item Mark Tool

Calculate grade boundary needed next item mark from explicit caller-supplied inputs.

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Description

needed = max(0,targetFraction*maximumFinalPoints-currentPoints); possible tests the unclamped deficit <= nextItemMaximum.

Scoring rules combine points, item weights, boundaries and policies for omission, extra credit or missing items. A computed mark is meaningful only under those explicit rules; applying a rule does not establish its fairness or official status.

needed = max(0,targetFraction*maximumFinalPoints-currentPoints); possible tests the unclamped deficit <= nextItemMaximum.

When to use this tool

Use Grade Boundary Needed Next Item Mark when checking one supplied scoring contribution or policy boundary.

How to use the tool and how it works

  1. Enter currentPoints, maximumFinalPoints, nextItemMaximum, targetFraction. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read needed, possible. Inspect possible before interpreting the associated values.

Require nonnegative currentPoints and nextItemMaximum, positive maximumFinalPoints and targetFraction in [0,1]. needed = max(0,targetFraction*maximumFinalPoints-currentPoints); possible tests the unclamped deficit <= nextItemMaximum.1

Input fieldMeaning and unitsAccepted input
currentPointsCurrent PointsRequired. Finite number; minimum 0.
maximumFinalPointsMaximum Final PointsRequired. Finite number; strictly above 0.
nextItemMaximumNext Item MaximumRequired. Finite number; minimum 0.
targetFractionTarget FractionRequired. Finite number; minimum 0; maximum 1.
Output fieldInterpretationReturned shape
neededNeededRequired. Finite number.
possiblePossibleRequired. Boolean.
json
{
  "input": {
    "currentPoints": 70,
    "maximumFinalPoints": 100,
    "nextItemMaximum": 20,
    "targetFraction": 0.8
  },
  "output": {
    "needed": 10,
    "possible": true
  }
}

Limitations and assumptions

  • needed can be fractional because no integer rounding is imposed. The final denominator is supplied and does not infer a course's grading rules.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use the complete approved rubric and score record for an official outcome, and examine measurement quality separately.

References

  1. Calculation and input contract: education/grade-boundary-needed-next-item-mark — tool.io

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