A focus of the Common Core State Standards/English Language Arts (CCSS/ELA) is that students become increasingly more capable with complex text over their school careers. This focus has redirected attention to the measurement of text complexity. Although CCSS/ELA suggests multiple criteria for this task, the standards offer a single measure of…

Describes the PMOSE/IKIRSCH document readability formula, which provides a measure of document complexity (looking at structure and density) of a wide array of different document types (including lists, schedules, tables, graphs, charts, indexes, time lines, maps, calendars, and forms). Discusses implications of the formula in terms of document…

Proposes that readability formulas cannot predict text difficulty. Presents results of an experiment designed to demonstrate that "text difficulty" is determined by individual differences (perception) and not by the objective qualities of a text. (NH)

Shows how a number of readability measures developed in English were applied to a textbook written in Hindi. Emphasizes that the more recent approaches to readability that focus on syntax, conceptual difficulty, and organization are a teacher's best help in selecting materials for students. (SR)

Explains eight categories of friendly text features: text organization, signaling, discourse consistency, cohesion, explication, conceptual density, metadiscourse, and instructional devices. Extratext determinants of readability (reader, goal, teacher) are also examined. Within the context of two models of reading, the interaction of these…