Evidence-based Practice

To be considered an evidence-based practice for individuals with ASD, efficacy must be established through peer-reviewed research in scientific journals using:
  • randomized or quasi-experimental design studies. Two high quality experimental or quasi-experimental group design studies,
  • single-subject design studies. Three different investigators or research groups must have conducted five high quality single subject design studies, or
  • combination of evidence. One high quality randomized or quasi-experimental group design study and three high quality single subject design studies conducted by at least three different investigators or research groups (across the group and single subject design studies)

The National Autism Center

Established Treatments are those for which several well-controlled studies have shown the intervention to produce beneficial effects. There is compelling scientific evidence to show these treatments are effective; however, even among Established Treatments, universal improvements cannot be expected to occur for all individuals on the autism spectrum.

Medical Dictionary

the practice of health care in which the practitioner systematically finds, appraises, and uses the most current and valid research findings as the basis for clinical decisions. The term is sometimes used to denote evidence-based medicine specifically but can also include other specialties, such as evidence-based nursing, pharmacy, and dentistry.
Mosby's Medical Dictionary, 8th edition. © 2009, Elsevier.