Nick Halsey made a usability test on Twenty Seventeen. See the results here. The method seems to be observation of usage and notes during the test. Four users tested the new theme. According to the web guru Nielsen you could find around 90% of the usability errors in this way.
Per Thykjaer Jensen
Author and Senior Lecturer at the Multimedia Design AP Programme. MA Literature History, BA Art History, MA IT, interaction and Multimedia. WordPress user since 2007.
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