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This study explored the structure of elementary cognitive tasks (ECTs) and relations between the corresponding construct(s) with processing speed (Gs) and fluid intelligence (Gf). Participants (N=321) completed 14 ECTs, 3 Gs, and 6 Gf marker tests, all administered in paper-and-pencil format to reduce potential confounds evident when tasks are presented using different media. Factor analysis of the...
Time constraints are commonly applied in the measurement of reasoning ability. We argue that time constraints introduce a spurious mental speed contribution to task performance. As a result, speeded measures of reasoning are conceived as a compound of two functions, namely working memory capacity and mental speed ability. We tested 277 participants with 12 reasoning tasks (six time constrained), and...
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