“…With the rapid increase in the popularity of smart phones, mobile Internet usage has soared by 67% from Sept., 2013 to Aug., 2014, and the use of hand‐held devices (i.e., mobile phones and tablets) has grown rapidly from 21.9% to 35.3% worldwide, while accessing the web by using desktops remains at 64.6% (Statcounter Global Stats, ). From previous studies that compared user behavior and search performance on a desktop monitor versus a mobile device screen (Jones, Buchanan, & Thimbleby, ; Kim, Thomas, Sankaranarayana, Gedeon, & Yoon, ), it is believed that the interface design for web searches on mobile devices needs to be different from that on a desktop monitor. Therefore, there have been efforts to improve design by understanding user interaction with small devices (Guo, Jin, Lagun, Yuan, & Agichtein, ; Lagun, Hsieh, Webster, & Navalpakkam, ).…”