Laptop-only Posture Risk Score Quick Rater
Laptop-only measured neck/viewing/keyboard posture indicators under caller quick-screen scoring; not full REBA. 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 posture screen can sum weights for independently observed indicators.
A posture screen can sum weights for independently observed indicators.1
Unknown indicators retain possible additional points instead of being treated as known absent evidence. Use this tool to calculate laptop-only Posture Risk Score Quick Rater from the supplied measurements and assumptions.
When to use Laptop-only Posture Risk Score Quick Rater
Use this tool to calculate laptop-only Posture Risk Score Quick Rater from the supplied measurements and assumptions. Establish the observation protocol, units, task and reference population or review criterion before entering measurements.
How to use Laptop-only Posture Risk Score Quick Rater and understand its results
- Establish the observation protocol, units, task and reference population or review criterion before entering measurements.
- Enter observedLaptopPostureFlags, knownLaptopPostureFlags, callerLaptopPosturePointWeights, using the field meanings and rules below, then run the tool.
- Read knownScreenPoints, unassessedMaximumAdditionalPoints. 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 |
|---|---|---|---|
| observedLaptopPostureFlags | Observed laptop posture flags; binary 0/1 under the definitions below | list of number | Required |
| knownLaptopPostureFlags | Known laptop posture flags; binary 1=known, 0=unknown, in the order described below | list of number | Required |
| callerLaptopPosturePointWeights | Caller laptop posture point weights | list of number | Required |
Enter nonempty aligned binary indicator flags and known flags with nonnegative point weights. Sum weight×indicator only where known=1; separately sum weights where known=0 as maximum additional unresolved points. Unknown indicator placeholders do not contribute to the known score. All-zero weights are allowed; no risk band, diagnosis or validated default questionnaire is installed.
knownPoints=Σknown_i×observed_i×weight_i; unresolvedMaximum=Σ(1−known_i)×weight_i Use the exact units, boundary rules, ordering and missing-evidence conventions above.
| Output field | Meaning | Value type |
|---|---|---|
| knownScreenPoints | Known Screen Points; follow the units, sign, ordering and evidence convention stated above | number |
| unassessedMaximumAdditionalPoints | Unassessed Maximum Additional Points; follow the units, sign, ordering and evidence convention stated above | number |
{
"input": {
"observedLaptopPostureFlags": [
1,
0,
1
],
"knownLaptopPostureFlags": [
1,
0,
1
],
"callerLaptopPosturePointWeights": [
2,
3,
4
]
},
"output": {
"knownScreenPoints": 6,
"unassessedMaximumAdditionalPoints": 3
}
}Limitations and assumptions
Unknown indicators retain possible additional points instead of being treated as known absent evidence. 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 Cumulative Trauma Disorder Risk Screening Point Scorer for this related task: A cumulative-trauma screen summarizes independently annotated indicators with supplied point weights.
Use Trackball Alternative Suitability Wrist Deviation Checker when its separate inputs and assumptions fit the question: Paired posture measurements compare a trackball trial with a mouse condition.
References
Similar or alternative tools
- Cumulative Trauma Disorder Risk Screening Point Scorer
A cumulative-trauma screen summarizes independently annotated indicators with supplied point weights.
- Trackball Alternative Suitability Wrist Deviation Checker
Paired posture measurements compare a trackball trial with a mouse condition.