This classic data set contains of intelligence-test scores from 301 children on 26 tests of cognitive ability.
The tests cover mental speed, memory, mathematical-ability, spatial, and verbal ability as listed below.
The data are also available in the MBESS package.
A data frame comprising 301 observations on 22 variables:
student ID number (int)
Sex (Factor w/ 2 levels “Female” and “Male”)
Grade in school (integer 7 or 8)
Age in years (integer)
Age in months (integer)
School attended (Factor w/2 levels “Grant-White” and “Pasteur”)
A speed test of addition (numeric)
A speed test (numeric)
A speed test of counting groups of dots (numeric)
A speed test discriminating straight and curved capitals (numeric)
A memory subtest of word recognition
A memory subtest of number recognition
A memory subtest of figure recognition
A memory subtest: object-number test
A memory subtest: number-figure test
A memory subtest: figure-word test
A mathematical subtest of deduction
A mathematical subtest of numerical puzzles
A mathematical subtest of problem reasoning
A mathematical subtest of series completion
A mathematical subtest: Woody-McCall mixed fundamentals, form I
A spatial subtest of visual perception
A spatial subtest
A spatial subtest paper form board
A spatial subtest (also known as lozenges)
A spatial subtest additional paper form board test (can substitute for paper)
A spatial subtest additional lozenges test (can substitute for flags)
A verbal subtest of general information
A verbal subtest of paragraph comprehension
A verbal subtest of sentence completion
A verbal subtest of word classification
A verbal subtest of word meaning
The data are from children who differ in grade (seventh- and eighth-grade) and are nested in one of two schools (Pasteur and Grant-White). You will see it in use elsewhere, both in R (
MBESS), and in Joreskog (1969) reporting a CFA on the Grant-White school subject subset.
Some tests are alternate or substitute forms, e.g.
paperrev (a paper form board test) can substitute for
flagssub for the lozenges test
Holzinger, K., and Swineford, F. (1939).
Holzinger, K., and Swineford, F. (1939). A study in factor analysis: The stability of a bifactor solution. Supplementary Educational Monograph, no. 48. Chicago: University of Chicago Press.
Joreskog, K. G. (1969). A general approach to confirmatory maximum likelihood factor analysis. Psychometrika, 34, 183-202.
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