"Cloze" readability scores as indices of individual differences in comprehension and aptitude

In the "close procedure" the readability of a prose passage is measured by the number of deleted words readers correctly guess. To three test groups (N^Bs) = 58), "easy," "hard" and "any" cloze passages were administered in a before-after design together with a knowledge pretest, and these data were related to AFQT scores. "Cloze" scores, knowledge test scores, and AFQT scores were all positively correlated.