Psychology at a Glance
Psychology at a Glance: Laws and Constants The field of psychology, like most other sciences, is rife with theoretical constructs that have been elevated to the status of "law." Here are some of the more interesting/influential/important ones. Collect them all, trade with your friends! If I've neglected any, please feel free to let me know. GENERAL PSYCHOLOGY Weber's Law The JND between two stimuli is proportional to the intensity of the initial stimulus. Wundt's Amendment to Weber's Law Psychologists' names starting with W should be pronounced as if they began with a V. TIME PERCEPTION Jonides's Axiom The number of committees one is assigned to increases as a function of the inverse of free time available. Geva's Paradox The efficiency of work decreases as its importance increases. HUMAN PERFORMANCE Fitts' Law Motor movement time is related to the precision of the movement and the distance to be covered. Seymour's Lemma Motor movement time is inversely related to the intensity of the stimulus in response to alarm clock activation. The Mueller-Horn Equation The likelihood of permanent tendon damage is directly related to the number of hours spent playing NHL 99.