Chunk #93 — Efficacy of Alpha Theta Training — Criteria for Levels of Evidence of Efficacy

Source

EEG biofeedback as a treatment for substance use disorders: review, rating of efficacy, and recommendations for further research.

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yes

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Level 2:Possibly efficacious. This classification is considered appropriate for those treatments that have been investigated in at least one study that had sufficient statistical power, well-identified outcome measures, but lacked randomized assignment to a control condition internal to the study.