Description
latency = responseAt-presentedAt; gap = latency-referenceLatency.
Educational time and material budgets need explicit working time, pauses, transitions, capacity and rate conventions. A numerical schedule allocation is a planning aid, not a validated recommendation for learning pace or an automatically feasible timetable.
latency = responseAt-presentedAt; gap = latency-referenceLatency.
When to use this tool
Use Research Item Response Latency Gap when checking a supplied teaching, study or assessment-resource budget.
How to use the tool and how it works
- Enter responseAt, presentedAt, referenceLatency. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read latency, gap. Use the output convention below.
Require nonnegative referenceLatency. latency = responseAt-presentedAt; gap = latency-referenceLatency.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| responseAt | Response At | Required. Finite number. |
| presentedAt | Presented At | Required. Finite number. |
| referenceLatency | Reference Latency | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| latency | Latency | Required. Finite number. |
| gap | Signed difference from the stated reference, using compatible units. | Required. Finite number. |
{
"input": {
"responseAt": 500,
"presentedAt": 100,
"referenceLatency": 350
},
"output": {
"latency": 400,
"gap": 50
}
}Limitations and assumptions
- Use one synchronized time unit. Negative latency is retained; the arithmetic does not identify cognitive processing time, invalid trials or an appropriate response-time threshold.
- 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 actual timetable, resources, learner needs and approved policies to assess a practical plan.
References
Similar or alternative tools
- Item Response Time Window Offset
normalizedTime = responseTime-suppliedClockOffset; lowerOffset = normalizedTime-windowStart; upperOffset = windowEnd-normalizedTime.
- Learner Response Time Censored Flag
recordedLatency = min(latency,timeout); censored tests latency >= timeout when equalityCensored, otherwise latency > timeout.