Measuring Duration Notes

Measuring Duration

Definition

• Duration is defined as the length of time from the start of a behavior to the end of that behavior.
• It is a continuous measurement.

When to Use Duration

• Best used for behaviors with a very clear start and end point.
• Also suitable when the behavior occurs at high rates or has multiple topographies that are difficult to capture accurately.

Examples of Duration

• John watched YouTube for a total duration of two hours and twenty-two minutes.
• Taylor colored in her coloring book for five minutes and thirty-two seconds.
• Cassie cried for three minutes.
• Jack screamed when his toy was removed for one minute and twelve seconds.

How to Use Duration as an RBT

• You may be asked to collect duration data in several scenarios:
  • Problem behaviors (e.g., tantrums, crying).
  • When a learner is engaged in an activity:
    • Sitting with an activity (e.g., circle time, coloring).
    • Completing a work activity.
    • Sitting at the table for Discrete Trial Training (DTT).
  • How long a client sits on the potty.
  • How long they scrub while washing their hands.