THE CHECKING OF PRIMARY ABILITY STRUCTURE ON A BROADER BASIS OF PERFORMANCES

Abstract

S ummary . A battery of 57 ability tests, spanning the full range of the ability domain, was administered to 343 young adults. The aims were to confirm the differentiability of the better‐known primary mental abilities and to assess the differentiability of the more recently hypothesised abilities, along with their relationships with the better‐established constructs. A common‐factor analysis of the 57 variables revealed 19 correlated primary abilities, ranging from such established factors as Verbal and Numerical ability to less well‐understood primaries in the memory and fluency‐originality areas. The conceptual nature of the factors and their interrelationships are discussed, and the results are placed in the context of earlier research on abilities.

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