Abstract: Stimulus-Response Compatibility,an important concept in psychology,has been demonstrated that it is an influential factor in human information processing.Complexity of the input of Chinese characters into computers raised the problem of evaluating learning easiness.This study applied the concept of S-R Compatibility to put forward a new method of evaluating easiness of learning to master a Chinese character inputting program.The value of the Stimulus-Response compatibility was used to predict the easiness of learning Chinese character inputting program. Three most popular Chinese character inputting programs were used in this study.The real learning easiness drawn from an experiment confirmed the predictability of the method suggested.

Key words: stimulus-response compatibility, population stereotype, compatibility coefficient, learning easiness