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Correlations between three ability composites (Gc, Gf, & PS) and composite domain knowledge test performance at initial session (before the reading assignment) -- Pretest; and in the session immediately following the reading assignment -- Posttest. Correlations larger than r = .24 are significant, with α=.05. Gc = Crystallized ability, Gf = Fluid ability, and PS = Perceptual Speed ability.
