Description
Return positive agreement and positive-event intersection over union.
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 positive agreement and positive-event intersection over union.
When to use this tool
Use Observer Agreement Positive Occurrence Term when checking the stated behavioral-research observation, assignment, coverage or coding convention.
How to use the tool and how it works
- Enter bothPositive, firstOnly, secondOnly. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read positiveAgreement, occurrenceIntersectionOverUnion. Use the output convention below.
Return positive agreement and positive-event intersection over union. Require nonnegative whole counts with positive union; positiveAgreement = 2*both/(2*both+firstOnly+secondOnly), IoU = both/(both+firstOnly+secondOnly).1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| bothPositive | Both Positive | Required. Safe integer; minimum 0. |
| firstOnly | First Only | Required. Safe integer; minimum 0. |
| secondOnly | Second Only | Required. Safe integer; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| positiveAgreement | Positive Agreement | Required. Finite number. |
| occurrenceIntersectionOverUnion | Occurrence Intersection Over Union | Required. Finite number. |
{
"input": {
"bothPositive": 6,
"firstOnly": 2,
"secondOnly": 2
},
"output": {
"positiveAgreement": 0.75,
"occurrenceIntersectionOverUnion": 0.6
}
}Limitations and assumptions
- Both-negative observations are omitted; neither measure is chance-corrected agreement or proof of valid behavioral coding.
- 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
Similar or alternative tools
- Observer Agreement Window Share
Return duration-weighted agreement on valid intervals.
- Observer Visible Interval Share Tool
Calculate observer visible interval share from explicit caller-supplied inputs.