The Guidelines for Evaluation of Clinical Efficacy of Psychophysiological Interventions (LaVaque et al. 2002), which have been accepted by AAPB and ISNR, specify five types of classification for the effectiveness of biofeedback procedures, ranging from “Not empirically supported” to “Efficacious and Specific.” The requirements for each classification level are summarized in brief below. A more complete description may be found in LaVaque et al. (2002).
