On sorting packs of sixty cards with form and color as variables in two to six kinds; card sorting by reaction to the previous card

Abstract

The colors used, in order of their addition to the first pair, were blue and yellow, red, green, gray, violet; the forms, in the same order, were cross and diamond, disk, square, half-disk, triangle; total, ten decks, five for form and five for color, of 60 cards each. There were 20 subjects, mostly psychology majors and about equally distributed between men and women. Color may be sorted somewhat more quickly than form, but the differences are inconclusive. Sorting is faster the fewer the suits in the deck; there is a practice effect of not to exceed 25%. Individual differences appear to decrease with practice. There is some evidence that the two kinds of discrimination involve about the same abilities. Women are rather consistently quicker than men. Introductory historical section. (PsycINFO Database Record (c) 2016 APA, all rights reserved)