stimulus stimulate the intended thought process, some donGLYPH<146>t. Third, because this is a randomized experiment, randomization can form the basis for inference, thereby avoiding assumptions of independence and non-interference. Within this context, we have proposed and illustrated a straightforward, robust methodology that (i) yields a conGLYPH<133>dence interval for the magnitude of e⁄ect despite interference between units, and (ii) often has greater power than procedures based on WilcoxonGLYPH<146>s statistic when only some treated trials are successful. References Aron, A. R. and Poldrack, R. A. (2006), GLYPH<147>Cortical and subcortical contributions to stop signal response inhibition: role of the subthalamic nucleus,GLYPH<148> Journal of Neuroscience , 26, 2424-2433. Cochran, W. G. (1937), GLYPH<147>A catalogue of uniformity trial data,GLYPH<148> Supplement to the Journal of the Royal Statistical Society , 4, 233-253. Conover, W. J. and Salsburg, D. S. (1988), GLYPH<147>Locally most powerful tests for detecting treatment e⁄ects when only a subset of patients can be expected to GLYPH<145>respondGLYPH<146>to treat- ment,GLYPH<148> Biometrics , 44, 189-196. Cox, D. R. (1958), Planning of Experiments , New York: Wiley. Deshpande, J. V. and Kochar, S. C. (1980), GLYPH<147>Some competitors of test based on powers of ranks for the two sample problem,GLYPH<148> Sankya , B42, 236-241. David, O. and Kempton, R. A. (1996), GLYPH<147>Designs for interference,GLYPH<148> Biometrics, 52, 597-606. Duann, J. R., Ide, J. S., Luo, X., Li, C. R. (2009), GLYPH<147>Functional Connectivity Delineates Distinct Roles of the Inferior Frontal Cortex and Presupplementary Motor Area in Stop Signal Inhibition,GLYPH<148> Journal of Neuroscience , 29, 10171-10179. Fisher, R.A. (1935), The Design of Experiments , Edinburgh: Oliver & Boyd. 35