Social identification effects in group polarization

An adjustable cable mechanism for operatively interconnecting an engine throttle with an adjustable accelerator pedal includes a control cable threaded from a fixed location along a first cable run to and serially around a fixed first roller and a pivotable second roller mounted on a pedal actuated control lever, and therefrom to the throttle along a second cable run. Pedal actuation pivots the control lever and the second roller to shift the second cable run and thereby control opening of the throttle. The rollers are mounted on an adjustable bracket for changing the relative lengths of the cable runs without changing the overall length of cable to permit fore and aft adjustment of the control lever for accommodating varying pedal positions.