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New #psyarxiv preprint: ‘Demand characteristics confound the rubber hand illusion’ psyarxiv.com/mpncv. Methods to control for demand characteristics in the illusion are not fit for purpose. Illusion reports are likely to reflect suggestion and compliance effects. (1/7) 
In rubber hand illusion studies, demand characteristics are usually controlled for by contrasting agreement scores for ‘illusion’ statements (synchronous condition referred touch and ownership experience) and ‘control’ statements (e.g., hallucinations). (2/7)
Higher scores for ‘illusion’ than ‘control’ measures are considered evidence that ‘illusion’ scores are not attributable to suggestion. A critical untested assumption of this method is that participant expectancies are closely matched across illusion and control conditions. (3/7)
