This article discusses how text variables interact with reader, strategy, and task variables to affect readability, including text coherence, text organization, signaling, and text structure. It considers how classic readability formulas, in concert with consideration of text, text reader, and strategy variables, can be used to match texts to…

This article explores the relationships between vocabulary knowledge and text readability. It discusses how procedures used by readability formulas to assess the vocabulary factor can over- or underestimate text difficulty by counting syllables rather than assessing what the reader knows about the words in a text. (Contains references.) (Author/CR)