Acta Psychologica Sinica

Abstract

A graphical analysis method (Myors, 1998) was used in 4 experiments. Experiment 1 demonstrated that the keypad of PES psychological experiment system had good timing accuracy. Experiment 2 showed that the timing accuracy of different keyboards varied from 1 to about 40 msec. Those PS2 keyboards had poor performance, especially. Experiment 3 demonstrated that the PS2-to-Normal and Normal-to-PS2 converter and the main processor frequency didn’t affect keyboard timing accuracy. In experiment 4, 3 operators were used and demonstrated that individual’s difference didn’t affect the power of this method. This study demonstrated the use of graphical analysis of timing accuracy, showed that in specific experiment, timing accuracy should be checked, in order to decide which kind of keyboard or keypad should be used, according to the timing accuracy of the experiment design. A small software named KBTST was provided for the timing accuracy checking.

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