Validity, the most critical of readability formula characteristics, requires that a measuring device actually measure what is intended to be measured. To examine validity, a study was conducted in which ten popular handbooks used in the teaching of college freshman composition were examined for comparative validity data--the extent to which scores…

Noting that four of the six most common readability formulas use the McCall-Crabbs Standard Test Lessons in Reading as the independent criterion of difficulty to establish validity, while the other two often site their correlation with the first four to determine validity, a study examined whether these lessons consisted of passage selections…

Argues that the Degrees of Reading Power test is not a valid tool for its main purpose, matching students to appropriate texts, because the test's units of text difficulty are not uniformly comparable to the test's units used to reflect a reader's ability. (HOD)

Explains significant but accounted for factors that affected the validity of the Degrees of Reading Power Test. (HOD)

Discusses the characteristics of three popular readability formulas: the Dale-Chall, the Fry Graph, and the Spache. Describes text based and reader/text based alternatives. Offers appropriate applications of each form of assessment. (FL)