A study of speed factors in tests and academic grades

1 March 1956

journal article
research article
Published by Cambridge University Press (CUP) in Psychometrika

Vol. 21 (1) , 31-50
https://doi.org/10.1007/bf02289085

Abstract

Speeded and unspeeded tests of vocabulary, spatial relations, and arithmetic reasoning were factorially analyzed, together with certain reference tests and academic grades. Lawley's maximum likelihood method was used, the computations being carried out on the Whirlwind electronic computer. Four different speed factors were isolated, together with a second-order general speed factor. Consistent small positive correlations between the academic grades and the speed factors were found.

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