Anecdotal evidence suggests that using a restricted language called Simplified English (SE) to write procedural documents is the best method to accommodate specific audiences. Providing empirical data to prove or disprove this hypothesis is the point of the experiment reported here. This study examined the effect of document type (SE versus non-SE), passage (Procedure A versus Procedure B), and native language (native versus non-native English speakers) on the comprehensibility, identification of content location, and task completion time of procedure documents for airplane maintenance. This research suggests that using SE significantly improves the comprehensibility of more complex documents. Further, readers of more complex SE documents can more easily locate and identify information within the document. For the documents tested in this experiment, the SE and non-SE documents took essentially the same amount of time for subjects to read and complete the test. Finally, while the difference between native and non-native English speakers could not be tested statistically because of extremely different cell sizes, the comprehensibility and content location scores for the native and non-native speakers appear to be quite different, with the non-native speakers benefiting from SE more than the native speakers.

This article tests the value of Kenneth Burke's methodology of placing screens before seemingly unproblematic objects to reveal their complex and often contradictory natures. The scientific article reporting experimental results is explored through three such “terministic screens”—the sermon, the playscript, and the blueprint. The result tells as much about Burke as a thinker as it does about the ways of thinking about the experimental article.

To communicate technical material effectively to a particular audience, a writer must not only analyze his readers' background and professional needs, but also incorporate that analysis into his text. This article introduces the concept of the mock reader as a means of giving body to an amorphic audience and relates that concept to the decisions a writer must make. Three situations are presented—writing to the operator, the expert, and the manager—to show how the mock reader can enhance the immediacy and coherence of a text.