Teachers: *Reliability: Structural Analysis (Linguistics-1i; *Textbook Evaluation

The purpose f this paper. is to-make classroom teachers on all educational levels aware of the limitations of readability forMulat and the factors affecting readability that are not accounted-for by. the readability formulas. delineated in discussions pf readability formula assumptions, problems, and limitations. Some of the specific factors that are discussed include the,reader's prior knowledge of the subject matter, format, organization, text structure, content, style, flow of information, lack of conflict structure, idea and inference density, grammatical and psyCholinguistietactiorsi- and reader characteristics. Based on the discussion of these Factors, the-conclusions, section of the paper considers the need for different readability formulas for different users-.-simpler.formulas for classroom teachers do4g gross screenings of reading materials and more sophisticated formulat for textbook. publishers and textbook adoption ' committees-.-and the, need for teachert to use readability formulas with understanding and caution. (RL) ****************************Ic*************************************** * Reproductions supplied by.EDRS are the best that caniae made * from the original docuient