Tom is a classic obsessive?compulsive. He is an engineer who must have everything perfectly orderly and clean at work and at home. Unable to express his emotions, he deals only in

Marcus et al (2014) article, “Is the Dodo bird endangered in the 21st century? A meta-analysis of treatment comparison studies”
using above article, can we further support the debate that the Dodo Bird Verdict/hypothesis (treatment equivalency), states no treatment is superior to the other rather they all are equally equivalent?
We could argue here using the Dodo Bird Hypothesis that no treatments are more effective than others rather they are all equally effective. For example when comparing bona fide treatments they yield similar outcomes which asserts that different psychological therapies have efficacy. As supported by Marcus et al (2014), there is no clear evidence that no one treatment is superior to another.
How does the article above explain support this side of the issue? And what types of article can be used to support the idea that psychological therapies are all equally effective?
other sources welcomed