This paper shows how the concept of general objectivity can be used to improve behavioral science measurement, particularly as it applies to the Lexile Framework, a tool for objectively measuring reading comprehension. It begins with a dialogue between a physicist and a psychometrician that details some of the differences between physical science…

Investigates whether novelistic prose can be dated by considering marked stylistic changes that occurred over the past 240 years. Finds a positive correlation between publication date and stylistic markers of sentence length, word length, rare punctuation, and word shortening or informality. Argues that this process can form the basis for new…

The purpose of this book is to introduce the research on readability, defined here as reading ease. The first part of the book covers how people read. A series of national literacy surveys show that the average person in the U.S. and most other countries are adults of limited reading skills. For example, the average adult in the U.S. reads at the…

The distinguishing characteristics and relationships found among the "Analytical Reading Inventory," the "Durrell Analysis of Reading Difficulty," and the Spache "Diagnostic Reading Scales" in terms of readability levels, oral and silent reading results, and independent and instructional reading levels were examined in a study involving 117 first,…

The revised Spache Readability Formula and the Fry Readability Formula were applied to 20 selected reading materials designed for adolescents reading at second grade level. Three samples from each text were examined. The results using the Spache formula corresponded to the publisher's stated readability levels, with no significant variability…

This report was prepared to assist the United States Army in evaluating the usefulness of readability formulas in identifying material that will be comprehended by readers at a given reading skill level. Existing readability methods and research findings were reviewed against three major criterion questions and the findings are discussed. The…

Designed to appeal to students who want a short but up-to-date overview, researchers who are interested in a critical appraisal, and consumers who would like to know what leaders in the field think, this collection of articles highlights the changes that have occurred in readability research from the past to the present and makes predictions about…

This monograph is the third in a series of semiannual reports of research related to reading in secondary schools. The first section of the monograph is made up of three research studies on the validation of teaching procedures to facilitate students' comprehension of content area texts, the graph-reading abilities of seventh grade students, and a…

The study reported in this paper was designed to describe the differences between the reading-difficulty levels of primary textbooks used in first-semester freshman general studies courses and the reading skills of the students enrolled in those courses, and to compare the Flesch Reading Ease Formula with the SMOG Grading Formula. Separate…

After reviewing criticisms of the exclusive use of readability formulas to evaluate text difficulty and describing successful efforts to broaden the traditional readability formula approach, this report presents a 20 item checklist for determining text comprehensibility based on four criteria: (1) specific objectives or outcomes expected from the…

The problems arising from treating word and sentence complexity as the direct causes of difficulty in comprehension are surveyed in this paper from the perspective of readability formulas. The basic choices and assumptions made in the development and use of readability formulas are discussed in relation to the larger question of text…

The objectives of this study were to develop a method for scoring the level of abstraction (LOA) of science reading material and explore its relationship with other methods for assessing curriculum materials. LOA is defined as the ratio of the nonconcrete concepts to the total number of concepts in a written passage expressed as a percent.…

Defining readability in both the narrow sense of formula use and refinement and the broader sense of the processing and comprehension of language, this paper argues for the need for more research focusing on readability as a way of improving the match between reader and text. Following a brief introduction, the paper reviews current readability…

Using two original children's books and adaptations of these books created by basal reader publishers, a study investigated (1) whether children prefer original, unadapted stories that may have longer sentences and more vocabulary items than are permitted by readability formulas for their grade level, or the adaptations of those stories, which…

A three-part correlational study examined the explanatory power of the Lexile theory of reading comprehension, which was based on the semantic and syntactic components of prose. Correlations were performed between the item difficulties of nine nationally normed reading comprehension tests and computer generated difficulties which were reported in…