The Internet has the potential to empower or isolate. Shyness and anxiety may potentially influence the extent to which people avail themselves of Internet services such as email, chat rooms, information searches, entertainment, and commerce. To understand how personality moderates Internet usage, 177 participants completed an Internet Use Survey, the Social Reticence Scale, and a Trait Anxiety Inventory. Shyness, anxiety, gender, and academic achievement were employed within separate multiple regressions to predict forms of Internet usage. The use of email and chat-rooms was not related to shyness or anxiety, suggesting that shyness or anxiety does not pose an obstacle to these Internet applications. Males were more likely to use the Internet for downloading entertainment. Shy males were more likely to use the Internet for recreation/leisure searches. Highly educated males were more likely to use the Internet for banking and paying bills. Although shyness or anxiety does not seem to modify the communicative functions of the Internet, it may influence people's use of other recreational applications.
Given the proliferation of touch-sensitive screen technologies, the factors contributing to efficiency of cursor control device were examined to better inform choice and design of Graphical User Interfaces. Fitts' law can be used to describe the relative efficiency of these cursor control devices. Experiment One required 18 participants to move a cursor between targets depicted upon a WACOM PL400 display graphics tablet, over various amplitudes, using a computer mouse or stylus, examining the speed and accuracy of cursor placement. The touch sensitive screen allowed faster acquisition of targets than the mouse. Since the mouse has a higher control/display ratio (gain) than the touch sensitive screen, Experiment Two addressed manipulation of the gain settings on computer mouse performance. Low gain offered some accuracy benefits. Possible posture problems associated with the touch sensitive screen were explored in Experiment Three. Screen orientation had little effect upon cursor positioning performance, suggesting the benefits of the touch sensitive screen can be transferred to user-friendly postures.
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