Statement 1 Fitts' Law uses the formula movement time = a + b log2 (distance/size + 1) where a and b are empirically determined constants. Statement 2 Studies of keyboard operators have shown that, although the faster operators were up to twice as fast as the others, the slower ones made 10 times the errors.

Related MCQs

• __                        _has different timing constants for different devices.
• Which of the following is the appropriate term to represent the processing mode in which computer user exchange information with the computer by selecting the icons displayed on the screen, and entering commands using the keyboard, adding human judgment to the information processing?
• "Using model of how a human would use a proposed system to obtain predict usability measure by calculation or simulation." Choose the evaluation technique to describe the above statement Which problem that might occur in a group-experimental studies i. Analysis ii. Subject group iii. Data assembly iv. Choice of task
• Providing accelerators (e.g. keyboard
• The design of a keyboard layout reflects the                   _ concern in HCI
• The design of a keyboard layout reflects the                        concern in HCI
• The design of a keyboard layout reflects the _                   concern in HCI
• Which of the following keyboard is biased towards right-handed people?
• Providing accelerators (e.g. keyboard shortcuts) mostly addresses?
• The design of a keyboard layout reflects the __________ concern in HCI