Suggests that the popular and simple readability formulas may not be accurate enough to predict the instructional materials best suited to the reading abilities of secondary school students. (FL)

Argues that the original Degrees of Reading Power (DRP) test scores indicated large mismatches between the average difficulty of the textbooks used in each grade and the average ability of students in that grade. Presents a rescaling procedure to provide new, valid DRP test scores and grade equivalent scores for selecting instructional materials.…

A team of faculty members and graduate students identified major concepts and developed validated test questions for two widely used textbooks in personal hygiene classes in order to standardize norms for classes and supplement inadequate instructor's manuals. (JMF)

Raises issues concerning pupils' interactions with mathematics textbooks. Discusses problems related to effective reading and the ability to interpret graphs, diagrams, and symbols. (NH)