Description
Check a visit against an explicitly bounded research window.
Clinical research distinguishes supplied protocol metadata, participant/event records, allocation bookkeeping and an analysis target. A local count, permission flag or denominator choice can help reconcile records without establishing valid consent, randomization, regulatory compliance or a reliable treatment-effect estimate.
Check a visit against an explicitly bounded research window.
When to use this tool
Use Research Visit Window Edge Closure when checking the stated clinical-research record, allocation, timing, analysis or evidence-basis convention.
How to use the tool and how it works
- Enter visit, start, end, startIncluded, endIncluded. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read within, atBoundary. Inspect within, atBoundary before interpreting the associated values.
Check a visit against an explicitly bounded research window. Require start <= end; within uses each inclusion flag independently, atBoundary tests exact equality with either endpoint.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| visit | Visit | Required. Finite number. |
| start | Start | Required. Finite number. |
| end | End | Required. Finite number. |
| startIncluded | Start Included | Required. Boolean. |
| endIncluded | End Included | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| within | Within | Required. Boolean. |
| atBoundary | At Boundary | Required. Boolean. |
{
"input": {
"visit": 10,
"start": 10,
"end": 20,
"startIncluded": true,
"endIncluded": false
},
"output": {
"within": true,
"atBoundary": true
}
}Limitations and assumptions
- Boundary labels and window values are supplied; protocol eligibility, date conventions and suitable clinical timing are not inferred.
- 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 protocol, authenticated source records and qualified clinical/statistical oversight for actual trial design, conduct and interpretation.
References
Similar or alternative tools
- Trial Outcome Window Closure Token
Check an outcome time against explicitly open or closed endpoints.
- Research Assessment Actual Nominal Gap
Compare actual assessment times with nominal times.