(1959), have indicated that one of the effects of conflict is an increment in drive. If conflict does contribute to drive, then the intensity, or speed, of the response occurring in the conflict situation should be increased (Brown, 1961). The results of several investigations (Castaneda & Worell, 1961; Finger, 194 I) have supported this proposal. Brown & Farber (195 I) have also indicated that the degree of conflict varies as a function of both the relative and absolute strengths of the competing responses. That is, conflict is expected to increase when the difference between the strengths of the competing responses is reduced and! or when the strengths of both competing responses are increased. It would be expected, then, that variation of the relative and absolute strengths of the competing responses would be related to the intensity of the response that occurs in the conflict situation. This relationship, however. has received little experimental attention.The present study was designed to vary the relative and absolute strengths of two competing responses and then to determine the effects of this variation on the speed of the response that occurred when both responses were Simultaneously aroused. Conflict and nonconflict test trials on a RT task. modified by using two ready signals, two response keys. and one stimulus to respond, were used for this purpose. I n order to vary the relative speed of the competing responses, the response to one of the ready signals was associated with shock during training trials. It was expected that the association with shock would increase the rcla tive speed of this response during the test 80 trials. I n order to vary the absolute speed of the competing responses, the length of the fore period used during training trials was changed during the test trials. It was expected that these changes in the length of the foreperiod would decrease the absolute speed of the competing responses. APPARATUS A stimulus display panel, containing a 7.5-W white light, a doorbell buzzer, and a 40-W yellow light, was mounted vertically on a desk. The white light, used as one of the ready signals, was attached to the upper left corner, the buzzer, used as the second ready signal, was mounted on the upper right corner, and the yellow light, which served as the stimulus to respond, was fixed to the lower center portion of the panel. An ac shock source was used to deliver a shock to the forearms of the Ss' preferred hands. The same intensity of shock, judged by E to be uncomfortable, was used for all Ss. Silent Hunter timers were used to control the onset of the lights, buzzer, and shock.A horizontal response keyboard containing a plastic disk and two microswitches was attached to the writing surface of a student chair. The disk was attached to the edge of the keyboard that was nearest to the S. The microswitches were placed 6 in. apart in the upper left and upper right corners of the keyboard. and 12 in. away from the disk. Standard electric docks were used to measure the latencies of the Ss'...