What is a Research Based Intervention?
Interventions provide direct, explicit instruction directed at increasing skills levels by actively involving the student. Interventions include methods such as providing additional instruction, change of instruction (i.e., teaching a different or additional reading program), or a specific behavior modification program.
Effective interventions increase the intensity of instruction by:
http://www.cde.state.co.us/rti/LearnAboutRtI.htm
Interventions, Accommodations & Modifications - What's the Difference?
How do I know if what I'm doing is really an intervention?
Ask yourself the following questions: