Description
Return upper-lower width and each asymmetric margin around estimate.
Personal measurement records use resolutions, scales, reference values, and rounding rules. Resolution is a recording increment and differs from accuracy, uncertainty, and clinical agreement.
Return upper-lower width and each asymmetric margin around estimate.
When to use this tool
Use Self Report Confidence Interval Width when you need one explicit measurement-record comparison or supplied calibration component.
How to use the tool and how it works
- Enter lower, upper, estimate. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read width, lowerMargin, upperMargin. Use the output convention below.
Require lower no greater than estimate no greater than upper. Return upper-lower width and each asymmetric margin around estimate.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| lower | Lower | Required. Finite number. |
| upper | Upper | Required. Finite number. |
| estimate | Estimate | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| width | Interval or dimension span under the stated unit and endpoint convention. | Required. Finite number. |
| lowerMargin | Lower Margin | Required. Finite number. |
| upperMargin | Upper Margin | Required. Finite number. |
{
"input": {
"lower": 2,
"upper": 8,
"estimate": 5
},
"output": {
"width": 6,
"lowerMargin": 3,
"upperMargin": 3
}
}Limitations and assumptions
- All inputs share one measurement scale; the tool does not construct or validate a confidence interval, coverage level, statistical model, or clinical interpretation.
- 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
Check instrument specifications, unit definitions, and appropriate professional interpretation before drawing a health conclusion.
References
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