saw the first publication of the Progressive Matrices,
a set of tests developed by John Carlyle Raven using Spearman's
Theory of General Intelligence and its components, eductive
and reproductive ability. Colloquially, the test is best
described as a measure of "a persons capacity for
coherent perception and orderly judgement"
Carlyle Raven's three sons John, Barton, and Martin formed
the company J C Raven Ltd in 1972.
John Raven the eldest son, took on the management of the
company enabling the continued development and maintenance
of the tests as well as promoting the development of other
tools for use in psychological assessment, organisational
development, staff guidance, placement and development.
best known for the Raven's Progressive Matrices and Vocabulary
Scales, John Raven senior and junior have both made major
contributions to research relating to the nature, development,
assessment, and release of competent behaviour.
work has been published in more than 20 books and research
reports and over 200 hundred journal articles.
Raven would be very interested indeed to hear from anyone
interested in this programme of research and development.
For further information in regard to this read JCRL's