The present study analyzes recent developments in the experimental investigation of the illusion of control by using the methods of meta-analysis. The aim of the study was to estimate the effect sizes associated with different factors thought to induce the illusion of control considering different conceptualizations of the phenomenon. The overall weighted mean effect size (D) was.62, with the 95% confidence interval about the mean.49 to.75. Generally, experiments tend to obtain moderate to large effect sizes, and the illusion of control is constantly present as an effect of several situational and psychological factors. Nevertheless, the large heterogeneity of the studies in terms of dependent measures suggests that the underlying phenomena can be of a different nature.