The Impact of letters' Relative Distance on Chinese Mobile Text Input Performance
Hongting Li · Chinese Journal of Ergonomics · 2010
Purpose: Based on Pinyin text input,the study discusses that there is difference or not between letters' relative distances with regard to text input performance for the two successive letters when subjects operate standard mobile keypads.Method: In the experiment,we studied the text input performance from the subject's reaction time and correct rate by complete in-subject design using Sony Ericsson W800C mobile.Results: There is significant difference in reaction time and correct rate when two letters are located the same key,two adjacent keys and non-adjacent keys.Conclusions:(1) The relative instance of keys which the letters are located has an important effect on input performance for two successive entering letters.(2) There is difference between males and females in react time and correct rate and the difference is significant.