Describes a relationship between events in which the rate of a behavior’s occurrence increases when some (usually aversive or unpleasant) environmental condition is removed or reduced in intensity. It leads to an increase in the future probability of a given behavior. For example, if a student tantrums after the BCBA asked him/her to perform a…

Sometimes abbreviated as NET, this term refers to a teaching approach where the child’s current activities and interests determine teaching strategies.