THE EFFECT OF SCALE-SIDE, INDICATOR TYPE, AND CONTROL PLANE ON DIRECTION-OF-TURN STEREOTYPES FOR HONG-KONG CHINESE SUBJECTS

This study investigates the influence of scale-side, pointer type, dir ection-of-increase, and control plane on direction-of-tum stereotypes for Chinese subjects using a variety of configurations of a linear dis play with a rotary control. Pointer type and direction of increase did not have a significant effect on direction-of-turn expectation. Stron g stereotypes are found when Warrick's principle and the scale-side pr inciple do not clash. In such a configuration, the scale is on the opp osite side of the display to the control, and the display indicator mo ves in the same plane as the control. However, when the two principles clash, stereotypes are weakened or eliminated and no single principle dominates. For a rotary control placed to the right of a horizontal l inear scale in the frontal plane there are strong clockwise-for-right and counterclockwise-for-left stereotypes which dominate the scale-sid e principle when there is a clash. The most marked stereotypes and fas test response times are obtained for the horizontal display with the c ontrol in the same frontal plane.