RBT calculators
Data calculations are part of the RBT exam (task A.6), and the certification rules come with deadlines that are easy to miss. These calculators show the working, so you can check yourself and learn the method.
| Calculator | What it does | Task or topic |
|---|---|---|
| Rate calculator | Turn a count and an observation time into a rate per minute or per hour. | A.6 Calculating and summarizing data |
| Percentage correct and percentage of intervals | Percentage of correct trials, of steps done independently, or of intervals with the behavior. | A.6 Calculating and summarizing data |
| Mean duration, latency and IRT | Average several timed responses: total duration, mean duration, mean latency or mean interresponse time. | A.6 Calculating and summarizing data |
| Interval recording calculator | Score an observation as partial interval, whole interval and momentary time sampling, and see how the three differ. | A.2 Discontinuous measurement |
| RBT supervision hours calculator | The minimum supervision for a month of RBT services (5%), with the contact and observation rules. | F.3 Ongoing supervision |
| RBT application timeline | The deadlines that matter for your application: 40-hour training window, background checks, competency assessment, exam authorization and retakes. | Certification steps |
Which summary to use
- Rate when observation times differ from session to session: a count alone can't be compared between a 30-minute and a 2-hour session.
- Percentage for trials (correct out of presented), task-analysis steps done independently, or intervals scored.
- Mean duration when how long the behavior lasts matters more than how often it happens, such as tantrums or time on task.
- Latency when the problem is how long it takes to start after an instruction, and interresponse time when it's the gap between responses, such as bites of food.