primary mental abilities

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A set of seven basic or fundamental cognitive capacities proposed in 1938 by the US psychologist Louis Leon Thurstone (1887–1955), on the basis of factor analysis, as an interpretation of the group factors or clusters of correlations between certain types of test items and subtests. They are labelled verbal comprehension (V), word fluency (W), number (N), spatial ability (S), associative memory (M), perceptual speed (P), and reasoning (R) or induction (I). Compare g. PMA abbrev.

Subjects: Psychology.

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