Description
Compare looking-time overlap with a required task duration.
Developmental-study observations use explicit trial, age, stimulus and missing-data conventions. Counterbalance flags and observation shares describe supplied research records; they do not establish actual stimulus presentation, an age correction appropriate for clinical use or a developmental assessment.
Compare looking-time overlap with a required task duration.
When to use this tool
Use Research Task Look Window Gap when checking the stated child-study observation, timing or record convention.
How to use the tool and how it works
- Enter lookStart, lookEnd, taskStart, taskEnd, requiredLookDuration. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read overlapDuration, durationGap. Use the output convention below.
Compare looking-time overlap with a required task duration. Require ordered look/task intervals and requiredLookDuration >= 0; overlapDuration = max(0,min(ends)-max(starts)), durationGap = overlap-required.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| lookStart | Look Start | Required. Finite number. |
| lookEnd | Look End | Required. Finite number. |
| taskStart | Task Start | Required. Finite number. |
| taskEnd | Task End | Required. Finite number. |
| requiredLookDuration | Required Look Duration | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| overlapDuration | Overlap Duration | Required. Finite number. |
| durationGap | Duration Gap | Required. Finite number. |
{
"input": {
"lookStart": 1,
"lookEnd": 5,
"taskStart": 0,
"taskEnd": 4,
"requiredLookDuration": 2
},
"output": {
"overlapDuration": 3,
"durationGap": 1
}
}Limitations and assumptions
- Touching intervals have zero overlap; observations and requirement are supplied, not detected or developmentally validated.
- 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
Review the study protocol, actual observations and consent/assent records; use validated assessment and qualified professional judgment for developmental or care decisions.
References
Similar or alternative tools
- Research Visit Age Window Offset
Return corrected research age and margins to an age window.
- Research Age Month Boundary Gap
Return age offset from a supplied month boundary.