Weber\'s law, a concept taught in most Introduction to Psychology courses, state

Question

Weber's law, a concept taught in most Introduction to Psychology courses, states that the ratio of the doesn't depend on the intensity of the stimulus. The ratio is called the "Weber fraction," so a concise intensity of a stimulus to the "just noticeable" increment in intensity is constant, that is, the ratio statement of Weber's law is that the Weber fraction is constant, regardless of the stimulus intensity." It turns out that Weber's law is not so much a law as it is a rule of thumb, since it is violated in many situations. For instance, for some auditory stimuli, the Weber fraction does depend systematically on the stimulus intensity The following bivariate data are the experimental data obtained for one listener in an auditory intensity discrimination task. For each of the ten stimulus intensities a (in decibels), the Weber fraction y (in decibels) is shown. Figure 1 is a scatter plot of the data. Also given are the products of the stimulus intensities and Weber fractions for each of the ten stimuli. (These products, written in the column labeled "xy," may aid in calculations.) intensity, x Weber fraction, y in decibels) (in decibels) 35 13.3 12.9 51.3 0.38 0.32 114 0.82 1.92 2.58 45 105.6 154.8 196.95 65 .03 4.47 Figure : Q W E A S DFGH

Explanation / Answer

Put the data in excel from the range A1:B10 and use excel function, we get the Correlaton Coefficient

CORREL(A1:A10,B1:B10)

= -0.982

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