Uncovering null effects in null fields: the case of homeopathy

Affiliations

• ¹ Department of Psychology, School of Social Sciences, University of Mannheim, Mannheim, Germany. Electronic address: edgar.erdfelder@uni-mannheim.de.
• ² Department of Clinical Psychology, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Department of Addiction Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.
• ³ Department of Psychology, University of Marburg, Marburg, Germany.
• ⁴ Department of Psychology, School of Social Sciences, University of Mannheim, Mannheim, Germany.