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	Zákon Hicka-Hymana	Protokol myšlenkového procesu (Think-Aloud Protocol)
Obor	Interakce člověk–počítač	Interakce člověk–počítač
Rodina	Hypothesis test	Hypothesis test
Rok vzniku	1952	1980
Tvůrce	William Edmund Hick and Ray Hyman	K. Anders Ericsson and Herbert A. Simon, adapted to HCI by Clayton Lewis
Typ	Empirical model of choice reaction time as logarithmic function of number of choices	Protocol for capturing user cognition and decision-making during task execution
Původní zdroj	Hick, W. E. (1952). On the rate of gain of information. Quarterly Journal of Experimental Psychology, 4(1), 11–26.	Ericsson, K. A., & Simon, H. A. (1980). Verbal reports as data. Psychological Review, 87(3), 215–251.
Další názvy	Hick's Law, Law of Choice Reaction Time	Talk-Aloud Protocol, Concurrent Thinking Aloud, TA
Příbuzné	4	4
Shrnutí	The Hick-Hyman Law predicts that human decision time increases logarithmically with the number of equally likely choices. Independently formulated by William Edmund Hick and Ray Hyman in the early 1950s, this law describes how long it takes a person to make a choice among alternatives. In human-computer interaction, the law is widely applied to menu design, navigation hierarchies, and command selection, showing that users take longer to select from larger sets of options, but the relationship is logarithmic, not linear.	The Think-Aloud Protocol is a usability testing method in which participants verbalize their thoughts while completing tasks on a system. As users navigate an interface, they continuously narrate their observations, interpretations, and reasoning, allowing researchers to understand their mental models, decision-making, and frustration points. Originating from cognitive psychology research by Ericsson and Simon (1980), this method was adapted for HCI by Clayton Lewis and has become one of the most widely used techniques for identifying usability problems and understanding user behavior.