Placebo Groups in Research on the Effectiveness of ABA Therapeutic Techniques

Behavior analysts have shown that a single-subject experimental design (SSED) is a useful tool for identifying the effectiveness of specific therapeutic techniques, whereas researchers outside applied behavior analysis (ABA) maintain that randomized placebo-controlled trials (RPCT) provide the most definitive test of efficacy. In this paper, the possible benefits that could result from supporting SSED studies by placebo control groups are discussed. However, the use of placebo groups in psychotherapy research arouses considerable controversy and many researchers argue against it. The main aim of this paper is to clarify theoretical and methodological problems associated with using placebo groups in psychotherapy research and to demonstrate that these problems can be solved if the assumptions on which they are based are reformulated. The article also discusses ethical issues about the use of placebo groups in research on the effectiveness of psychotherapy.

On The Shoulders Of Giants, Part 2: Stewart Wolf And The Pharmacology Of Placebos

BY: PAUL ENCK & SIBYLLE KLOSTERHALFEN | DECEMBER 6, 2018 In comparison to Henry Beecher’s much-cited paper, “The Powerful placebo,” of 1955 (1), Stewart Wolf’s paper, “The pharmacology  of placebos,” of 1959 (2) is today almost forgotten; it came along less spectacularly but more scientifically solid, hiding its implicit provocation (there is a biology underlying the placebo effects) behind a seemingly …