Now, decades after the typewriter was replaced by computers, people make different types of mistakes. Most of our knowledge of how people type is based on studies from the typewriter era. “Crowdsourcing experiments that allow us to analyse how people interact with computers on a large scale are instrumental for identifying solution principles for the design of next-generation user interfaces,” said study co-author Dr Per Ola Kristensson from Cambridge’s Department of Engineering. The results will be presented later this month at the ACM CHI Conference on Human Factors in Computing Systems in Montréal. The strategy is well-known in the gaming community but has not been observed in a typing study. However, they also found that the fastest typists also performed between 40 and 70 percent of keystrokes using rollover typing, in which the next key is pressed down before the previous key is lifted. Unsurprisingly, the researchers found that faster typists make fewer mistakes. Participants were asked to transcribe randomised sentences, and their accuracy and speed were assessed by the researchers. Volunteers from over 200 countries took the typing test, which is freely available online. The data was collected by researchers from Aalto University in Finland and the University of Cambridge.
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