Report Statistics
Learn how TallyFlex calculates report statistics for frequency, duration, latency, percent correct, interval recording, and task analysis data.
Use Include statistics in a Detailed data report to add summary metrics for each selected target.
Read the average
The denominator depends on the recording method. A frequency average per data day is different from a rate per hour; check the unit beside the result.
| Recording method | Average summarizes |
|---|---|
| Frequency | Total occurrences divided by days with data |
| Duration | Daily total duration, averaged across days with data |
| Latency | Total recorded latency divided by recorded responses |
| Percent Correct | Correct responses divided by total trials |
| Partial or Whole Interval | Intervals scored as occurring divided by total scored intervals |
| Momentary Time Sampling | Samples scored as occurring divided by total scored samples |
| Task Analysis | Independent steps divided by total scored steps |
Percentage results are multiplied by 100. With underlying counts, 0 correct out of observed opportunities contributes to the percentage summary. A blank period with no observation is not an observed zero.
Why the overall percentage can differ from daily percentages
When trial, interval, or step counts are available, the overall percentage pools those counts. For example, 1/1, 1/10, and 8/10 correct gives 10/21, or about 48% overall. Averaging the three daily percentages equally would give about 63%.
The pooled result gives each scored opportunity equal weight. Percentage-only records do not join that pooled result. When the report period has no underlying counts, older percentage-only records provide a fallback average; legacy zero values can be omitted from that fallback. Check the underlying counts when comparing periods with different numbers of opportunities.
Read median and range alongside the average
The median is the middle daily value, and the range shows the lowest and highest daily values. For latency, these use daily average latencies; for percentage methods, they use daily percentages. They can therefore differ from the pooled overall average.
Review these summaries with the graph, observation periods, and notes. A calculated trend or report label supports review; it does not record mastery or decide changes to a learner’s plan. Recording mastery remains a separate action.