Description
Return a coded observation's target share under an exclusion policy.
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.
Return a coded observation's target share under an exclusion policy.
When to use this tool
Use Observation Code Duration Share when checking the stated child-study observation, timing or record convention.
How to use the tool and how it works
- Enter targetDuration, otherDuration, excludedDuration, includeExcluded. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read denominator, targetShare, defined. Inspect defined before interpreting the associated values.
Return a coded observation's target share under an exclusion policy. Require nonnegative target/other/excluded durations; denominator = target+other+(includeExcluded ? excluded : 0), targetShare divides or returns zero with defined false.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| targetDuration | Target Duration | Required. Finite number; minimum 0. |
| otherDuration | Other Duration | Required. Finite number; minimum 0. |
| excludedDuration | Excluded Duration | Required. Finite number; minimum 0. |
| includeExcluded | Include Excluded | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| denominator | Target plus other duration, adding excluded duration only when includeExcluded. | Required. Finite number. |
| targetShare | Target Share | Required. Finite number. |
| defined | Reporting flag under the explicit denominator or information policy above; inspect any zero placeholder or policy-defined value. | Required. Boolean. |
{
"input": {
"targetDuration": 30,
"otherDuration": 60,
"excludedDuration": 10,
"includeExcluded": true
},
"output": {
"denominator": 100,
"targetShare": 0.3,
"defined": true
}
}Limitations and assumptions
- Duration categories are assumed compatible and nonoverlapping; no behavior, coding reliability or developmental outcome is 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
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
- Infant Stimulus Look Duration Ratio
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- Infant Trial Valid Gaze Term
Return infant gaze share under an occlusion policy.