PSY-3215 Lecture Notes - Lecture 5: Power Law, Mathematical Table, Electric Shock
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Did his work at harvard university about 100 years after fechner (1830s) and weber (1850s) Can we predict the magnitude of this experience? . We are interested in the magnitude of the experience and whether we can predict the magnitude of the experience. Under the assumption of direct scaling - you can directly apply numbers. An observer is presented with a standard stimulus (assigned a number) that is called a modulus. Then the observer is randomly presented with a range of stimulus that varies along the physical dimension; the observer must apply a number to indicate magnitude relative to the modulus. What happens psychologically when we double the physical intensity? . Concerned with the prediction of psychological magnitude. Along the x-axis = change in stimulus magnitude (size of stimulus) Along y-axis = psychological magnitude (number assigned by observer) Length - linear (double the size of the circle, it seems twice as big) [exponent =
