Experimental psychology and pedagogy for teachers, normal colleges, and universities / by R. Schulze, translated by Rudolf Pintner.

  • Schulze, Rudolf.
Date:
1912
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Licence: Public Domain Mark

Credit: Experimental psychology and pedagogy for teachers, normal colleges, and universities / by R. Schulze, translated by Rudolf Pintner. Source: Wellcome Collection.

    360/400 (page 332)
    Table I. shows the results obtained in the test of difference sensitivity for tones of the eleven pgs: Ato K. TABLE I, oe see ots ; +5 B 2 C 27 D 1-5 K 8 FB 4 G 6-5 H 25 I 15 J 15 K 11 In the same manner the rapidity of addition was determined for all the observers. It seems at the first glance impossible to bree these two rows into relation with each other. How can I bring the fact, that A was able to distinguish one tone from another at 2°5 oscillations per second, in relation to the other fact, that A was able to complete 125 additions in a certain time? Is this number of additions such a one as corresponds to a difference sensitivity of 2°5 oscillations per second? Or must I say that A shows a small difference sensitivity for tones and a great rapidity | in addition? Or is the rapidity im addition less than the tone sensitivity ? We see, in short, that if our in- vestigation only included one observer, we could give absolutely no answer to such questions. But we have eleven observers, and so there is the possibility of arranging their results in a row according to ability. The following table gives this row for the tone sensitivity. Observer D with 1°5 oscillations comes first, and E with 28 oscillations comes last.