An Analysis of Individual Differences in Within-Test Practice Effects in Progressive Matrices.

J Intell · 2025 · PMC12653166 · PMID 41295428

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only marginally significantno p-value reported

Embretson ( 2002 ) found that distortion was positively related to item difficulty in the RAPM, whereas overlay and fusion correlated negatively with item difficulty, although the effect of overlay was only marginally significant.

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