Table 5.

Types of data collection

Type	Description
Frequency	The number of times a behavior occurs
Duration	The amount of time a behavior occurs
Rate	The number of times a behavior occurs per minute/h, etc.
Trials to criterion	The number of learning sessions until the student masters the skill

In ABA, decision making is data based; all interventions are evidence based, meaning there are data to support the intervention’s effectiveness. When using a BIP or teaching a skill, data are taken continuously to see if the intervention is working and if any changes need to be made to improve the intervention