ability.cov: Ability and Intelligence Tests
Description
Six tests were given to 112 individuals. The covariance matrix is
given in this object.Details
The tests are described as
- general:
- a non-verbal measure of general intelligence using
Cattell's culture-fair test.
- picture:
- a picture-completion test
- blocks:
- block design
- maze:
- mazes
- reading:
- reading comprehension
- vocab:
- vocabulary
Bartholomew gives both covariance and correlation matrices,
but these are inconsistent. Neither are in the original paper.References
Smith, G. A. and Stanley G. (1983)
Clocking \(g\): relating intelligence and measures of timed
performance. Intelligence, 7, 353--368.