Tuesday, July 9, 2019

ASD Intervention: How Do We Measure Effectiveness?

Question 1: “What behaviors should change as a result of the intervention?”
Virtually any ASD intervention that is truly effective will result in observable change in behavior. For example, a speech intervention may very well result in increased spoken language (e.g., novel words, greater rate of utterances). An academic intervention should result in specific new academic skills (e.g., independent proficiency with particular math operations). An exercise purported to decrease the occurrence of challenging behavior will, if effective, result in a lower rate of specific challenging behaviors (e.g., tantrums, self-injury). 
As “consumers” of ASD interventions, you and your family member have every right to expect that the marketer will identify specific, objective, and measurable changes in behaviors that indicate treatment efficacy. Scientists refer to such definitions as “operational definitions” – these are definitions that are written using observable and measurable terms. If the marketer insists on using ill-defined, “fuzzy” descriptions of treatment benefit (e.g., “increased sense of well-being”, “greater focus and intentionality”, an increased “inner balance” or “regulation”), then “Buyer Beware!” These kinds of outcome goals will leave you guessing about treatment effect. Insist that operational definitions of target behaviors be agreed upon prior to starting the intervention.