PSYC 388 Study Guide - Quiz Guide: Absolute Threshold, Standard Deviation, Psychophysics

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Psychophysics: systematic study of the imperfect relationship between physical and psychological events. Weber: idea of just noticeable differences ratio for sensation and noticeable difference: the smallest difference between 2 stimuli that can be distinguished by the perceiver. Ps(cid:455)(cid:272)hologi(cid:272)al aspe(cid:272)t i(cid:374) that (cid:455)ou do(cid:374)(cid:859)t (cid:374)oti(cid:272)e differe(cid:374)(cid:272)e e(cid:448)e(cid:374) though there is a physical difference. Not to remove physical but to say physical explanation does(cid:374)(cid:859)t (cid:272)o(cid:448)er e(cid:448)er(cid:455)thi(cid:374)g. Math is a representation of nature, where laws govern nature. Quetelet: people are slightly difference, average = true person. Each person is a variation therefore an error not the same of average in modern day. Galton: statistical ideas of correlation and standard deviation. Theoretical considerations: laws vs particulars, objectivity and subjectivity. Locke: primary qualities i(cid:374)here(cid:374)t to o(cid:271)je(cid:272)t(cid:859)s for(cid:373) like size a(cid:374)d substance; secondary require interaction between things and observer ie color or texture. Objectivity as universal common to all, true to all. Objectivity as observers are interchangeable facts are only objective if perceived apart from observer.

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