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Lakin, Joni M.; Gambrell, James L. – Intelligence, 2012
Measures of broad fluid abilities including verbal, quantitative, and figural reasoning are commonly used in the K-12 school context for a variety of purposes. However, differentiation of these domains is difficult for young children (grades K-2) who lack basic linguistic and mathematical literacy. This study examined the latent factor structure…
Descriptors: Evidence, Validity, Item Response Theory, Numeracy