Description
Check an evidence interval against a supplied null with endpoint policies.
Research effect estimates depend on outcome definitions, unit conversions, orientation and statistical assumptions. A written rounding envelope describes reporting precision; an effect-size contribution or supplied interval is different from a fitted analysis, a confidence statement or evidence of clinical benefit.
Check an evidence interval against a supplied null with endpoint policies.
When to use this tool
Use Evidence Null Crossing Token when checking the stated effect-size, measurement or interval convention.
How to use the tool and how it works
- Enter lower, upper, suppliedNull, includeLower, includeUpper. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read containsNull, touchesNull. Inspect containsNull, touchesNull before interpreting the associated values.
Check an evidence interval against a supplied null with endpoint policies. Require lower <= upper; containsNull applies includeLower/includeUpper, touchesNull uses exact endpoint equality independently.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| lower | Lower | Required. Finite number. |
| upper | Upper | Required. Finite number. |
| suppliedNull | Supplied Null | Required. Finite number. |
| includeLower | Include Lower | Required. Boolean. |
| includeUpper | Include Upper | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| containsNull | Contains Null | Required. Boolean. |
| touchesNull | Exact equality of suppliedNull to either endpoint, independent of endpoint inclusion. | Required. Boolean. |
{
"input": {
"lower": -1,
"upper": 2,
"suppliedNull": 0,
"includeLower": true,
"includeUpper": true
},
"output": {
"containsNull": true,
"touchesNull": false
}
}Limitations and assumptions
- Touching can be true while containment is false; this does not validate a confidence interval or determine statistical/clinical significance.
- 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 a complete, justified statistical analysis and original study data; distinguish reporting precision from sampling uncertainty and assess clinical relevance independently.
References
Similar or alternative tools
- Research Outcome Window Precision
Return a symmetric reporting-precision interval and target-window overlap.
- Chiropractic Review Effect Estimate Rounding Envelope
Return a symmetric decimal-rounding envelope for an estimate.