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Observer Visible Interval Share Tool

Calculate observer visible interval share from explicit caller-supplied inputs.

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Description

Return visible observation time share.

Behavioral-study coding depends on observation intervals, missing samples, event records and assignment rules. Partial-, whole- and momentary-sampling summaries answer different questions; local agreement or coverage does not establish actual behavior, a diagnosis or an effective intervention.

Return visible observation time share.

When to use this tool

Use Observer Visible Interval Share when checking the stated behavioral-research observation, assignment, coverage or coding convention.

How to use the tool and how it works

  1. Enter visibleDuration, observationDuration. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read share, defined. Inspect defined before interpreting the associated values.

Return visible observation time share. Require 0 <= visibleDuration <= observationDuration; share divides by observation time or is zero with defined false at zero duration.1

Input fieldMeaning and unitsAccepted input
visibleDurationVisible DurationRequired. Finite number; minimum 0.
observationDurationObservation DurationRequired. Finite number; minimum 0.
Output fieldInterpretationReturned shape
shareDimensionless numerator/denominator ratio under the explicit basis above.Required. Finite number.
definedWhether the stated denominator or information basis supports this value; inspect placeholders before interpretation.Required. Boolean.
json
{
  "input": {
    "visibleDuration": 15,
    "observationDuration": 20
  },
  "output": {
    "share": 0.75,
    "defined": true
  }
}

Limitations and assumptions

  • Visibility records are supplied and no behavior is detected; coverage alone does not establish representativeness or valid assessment.
  • 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 verified observations and the study’s complete sampling/coding protocol, with appropriate statistical and professional interpretation for health or intervention decisions.

References

  1. Calculation and input contract: behavioral-science/observer-visible-interval-share — tool.io

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