- Knox Cubes
The Knox Cube Imitation Test (KCIT, or CIT, or KCT) was developed as a nonverbal test of intelligence developed by Dr. Howard Knox, a medical officer at Ellis Island. It was first published as a pamphlet in 1913, and then in 1914 as a paper in the
Journal of the American Medical Association . [ [http://www.rasch.org/rmt/rmt133j.htm "A scale, based on the work at Ellis Island, for estimating mental defect"] , Howard A. Knox, The Journal of the American Medical Association, March 7, 1914, LXII, 10, 741-747.]Knox wrote:
There were several other tests presented in his paper besides the cube test. In the cube test, 4 black 1" cubes were placed in a row, each cube separated by 4 inches from its neighbors. The test administrators takes a smaller cube and taps on the 4 1" cubes in increasing complicated sequences. The test subject is requested, sometimes only by sign language, to repeat the sequence. If the cubes are numbered 1 through 4, the sequences in order are::a. 1,2,3,4:b. 1,2,3,4,3:c. 1,2,3,4,2:d. 1,3,2,4:e. 1,3,4,2,3,1and so on.
Knox suggested that sequence a (1-2-3-4) is reasonable for a child of 4 years of age, sequence b (1-2-3-4-3) is suitable for a 5 year old, sequence c (1-2-3-4-2) can be accomplished by a 6 year old, sequence d (1-3-2-4) can be done by the average 8 year old, and copying sequence e (1-3-4-2-3-1) is expected by most 11 year olds. Some of these sequences were repeated as part of other published tests such as Arthur (1947)Fact|date=February 2007 and Wright & Stone (1979).Fact|date=February 2007
Performance on the Knox Cube Imitation Test is correlated with both Verbal
IQ and PerformanceIQ . [ [http://cat.inist.fr/?aModele=afficheN&cpsidt=17312925 "Knox's cube imitation test : A historical review and an experimental analysis"] , John T. E. Richardson, Brain and cognition, 2005, vol. 59, no2, pp. 183-213 ISSN 0278-2626]ee also
*
Henry H. Goddard
*Vineland Training School
*Simon (game) Notes
External links
* [http://www.rasch.org/rmt/rmt133j.htm "Knox's "Cube Imitation" Test", from "Knox's "Cube Imitation" Test Knox, H.A. …", John Michael Linacre, Rasch Measurement Transactions, 1999, 13:3 p. 708]
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