Professor Teresa Iacono
La Trobe Rural Health School, La Trobe University
- The baseline data has been collected
- Now it is time to deliver the intervention
- The only thing that changes from baseline to intervention phases is the intervention itself. All other factors (e.g., session length, frequency) should remain the same
In the case of Jonathan, the intervention will create opportunities for Jonathan to request ‘more’, require his parents to wait to see if he produces a potentially communicative act, and then respond in a contingent fashion if he does so.
To ensure that conclusion can be drawn about the effectiveness of the intervention, it is essential that the only thing that changes is the fact that you are now delivering intervention. The setting, duration of activity, people involved, and frequency of client contact should remain the same as baseline. Otherwise, it may simply be a change in one or more of these other variables that lead to a change in the clientís behaviour. Therefore, before proceeding to intervention, check that all other baseline factors are unchanged.