Background: Readability tests are indicators that measure how easy a document can be read and understood. Simple, but very often ignored, readability statistics cannot only provide information about the level of difficulty of the readability of particular documents but also can increase an evaluator's credibility. Purpose: The purpose of this…

High school biology content was rewritten in an attempt to reduce reading difficulties for students (N=265). After four weeks of use of reduced readability materials, no significant differences in achievement were apparent. (PB)