| KCT {pairwise} | R Documentation |
Knox Cube Test Data from Wright & Stone (1979)
Description
Data from the Book 'Best Test Design' from Wright & Stone (1979, p. 31, table 2.3.1) comprising responses from 35 subjects scored in 18 dichotomous items.
Usage
data(KCT)
Format
A "data.frame" containing 18 numeric variables (coded 0,1) and 35 obsevations.
Details
The so called 'Knox Cube Test' was initially developed as a cube imitation test around 1913 by Howard A. Knox as a nonverbal test of intelligence to screen and identify potential immigrants with mental deficits at the Ellis Island immigration station in New York Harbor – see Richardson (2005) for a historical review.
Quoted from Wright & Stone (1979):
"Success on this subtest requires the application of visual attention and short-term memory to a simple sequencing task. It appears to be free from school-related tasks and hence to be an indicator of nonverbal intellectual capacity." (Wright & Stone 1979, p. 28).
References
Wright, B. D. & Stone, M. H. (1979). Best Test Design: Rasch Measurement. Chicago: MESA Press.
Richardson, J. T. E. (2005). Knox’s cube imitation test: A historical review and an experimental analysis. Brain and Cognition, 59(2), 183–213. https://doi.org/10.1016/j.bandc.2005.06.001
Examples
data(KCT)
dim(KCT)
############# some item calibrations ###############
data(KCT)
IP_pair <- pair(daten = KCT[,4:17], m = 2)
summary(IP_pair)
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#########MIKE error message never received##########
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