REBA Grand Score Risk Category Mapper

Named REBA score/action band mapping only, independent full score required, not operational work-safety decision. Caller independently establishes matching units, evidence, method edition and applicability; output is not compliance, diagnosis, work-safety approval, geological identity or validated hazard prediction.

Description

A Rapid Entire Body Assessment (REBA) grand score can be mapped to an action category.

A Rapid Entire Body Assessment (REBA) grand score can be mapped to an action category.^[1]

Mapping a supplied score does not establish how it was measured or calculate the preceding posture and load tables. Use this tool to calculate REBA Grand Score Risk Category Mapper from the supplied measurements and assumptions.

When to use REBA Grand Score Risk Category Mapper

Use this tool to calculate REBA Grand Score Risk Category Mapper from the supplied measurements and assumptions. Establish the observation protocol, units, task and reference population or review criterion before entering measurements.

How to use REBA Grand Score Risk Category Mapper and understand its results

Establish the observation protocol, units, task and reference population or review criterion before entering measurements.
Enter independentRebaGrandScore, using the field meanings and rules below, then run the tool.
Read actionLevel, riskCategory. Interpret the fields using their units, signs and evidence conventions below.
If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.

Input field	Meaning	Value type	Requirement
independentRebaGrandScore	Independent reba grand score	number	Required

Enter an integer supplied grand score from 1 through 15. Map 1 to action level 0/negligible; 2–3 to 1/low; 4–7 to 2/medium; 8–10 to 3/high; and 11–15 to 4/very high. No posture observations, load scores or table combination are calculated.

actionLevel=0,1,2,3,4 for score bands 1;2–3;4–7;8–10;11–15

Use the exact units, boundary rules, ordering and missing-evidence conventions above.

Output field	Meaning	Value type
actionLevel	Action Level; follow the units, sign, ordering and evidence convention stated above	number
riskCategory	Risk Category; follow the units, sign, ordering and evidence convention stated above	string

json

{
  "input": {
    "independentRebaGrandScore": 5
  },
  "output": {
    "actionLevel": 2,
    "riskCategory": "medium"
  }
}

Limitations and assumptions

Mapping a supplied score does not establish how it was measured or calculate the preceding posture and load tables. Interpretation depends on the units, sampling scope and exact model described above.

All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.

Alternative or Complementary methods

Use REBA Activity Coupling Adjuster Calculator for this related task: Coupling and activity indicators are separate REBA adjustments.

Use REBA Trunk Score Calculator when its separate inputs and assumptions fit the question: REBA uses observed trunk posture and additional movement indicators to form a component score.

References

REBA Grand Score Risk Category Mapper — tool.io

Similar or alternative tools

REBA Activity Coupling Adjuster Calculator
Coupling and activity indicators are separate REBA adjustments.
REBA Trunk Score Calculator
REBA uses observed trunk posture and additional movement indicators to form a component score.