Kopfermann cubes

line drawings of cubes that are perceived as two-dimensional figures rather than as three-dimensional cubes. A hexagon equally divided into six triangles is one example. In this case, gestalt principles of perception have been invoked to explain the compelling perception of two-dimensional triangles, rather than sides of a three-dimensional figure. [Hans Kopfermann, 20th-century German physicist and experimental psychologist]

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Psychology term of the day

December 7th 2024

adequate sample

a sample that sufficiently represents the larger population from which it was drawn in terms of size, being large enough to provide satisfactory precision by minimizing the possibility of chance affecting the data obtained.