A left hemisphere advantage in response accuracy was obtained for an adjective gener a tion task independent of fluctuations in subjects' speed-accuracy criteria. This effect resulted despite the fact that stimuli were not repeated over trials and despite the controls taken to minimize eye movement confound. Response times did not differ statistically as a function of visual field condition. This finding suggests that previously obtained visual field effects for response time may not reflect a 'necessary' hemispheric difference in processing time, but may have been an artifact specific to free-response paradigms.