It was hypothesized that stuttering may be related to impaired sensory gating, leading to overflow of superfluous disturbing auditory feedback and breakdown of the speech sequence. This hypothesis was tested using the "acoustic startle prepulse inhibition" (PPI) paradigm. A group of 22 adults with developmental stuttering were compared…

This study evaluated the effectiveness of an expert instructional system used to provide timely and quality feedback about the quality of a variety of visual materials production techniques to undergraduate students in a basic instructional materials production class. One group of students generated its own feedback by using the expert system, and…

In this article, we describe and evaluate a Web-based interactive tutorial used to present hypothesis testing concepts. The tutorial includes multiple-choice questions with feedback, an interactive applet that allows students to draw samples and evaluate null hypotheses, and follow-up questions suitable for grading. Students either used the…

This study was conducted to investigate the effects of the animation of visual information when used in conjunction with text and static visuals in microcomputer-based instruction. Of particular interest were consequent performance on higher level learning tasks as a result of viewing these forms of visual presentation, and those levels of…

Presents a case study comparing a native-speaker undergraduate's performance on an examination and a coursework essay. Relational analysis facilitated text-linguistic comparison of two texts. The study contrasts an adequate handling of material in memory in examination conditions with the uncertain handling of difficult source materials. (40…

Describes a study of undergraduates that compared the effects of response-certitude adaptive and nonadaptive feedback in a computer-based lesson of verbal information and defined concept tasks. Effects on student performance, feedback-study time, and lesson efficiency are discussed, and implications for future research are suggested. (LRW)

Reviews an investigation of whether different formative evaluation procedures are needed when learning materials designed for one population are used by different cultural groups. Groups from the United States and Brazil were used to compare learner reactions and attitudes and to determine the amount of modification needed to revise materials.…

Investigates listening performance in a computer-based multimedia environment. Learner success rates were compared on comprehension of English as a Second Language and language recall tasks while using audio, video, and multimedia. Results of performance on tasks reveal more effective comprehension and recall while using multimedia than either…

The primary purpose of this study was to examine the effects of replacing multiple-choice questions in tutorial software practice interactions with a learning strategy (i.e., learner-generated summaries) on immediate recall. Subjects were 35 students--32 females and 3 males--from an undergraduate computer course in the College of Education at…

Reviews study conducted to compare levels of achievement on final exams for college students responding to combinations of test-item feedback methods and modes of test-item presentation. The PHOENIX computer system used in the comparison is described, and the use of ACT (American College Testing Program) scores for ability comparison is discussed.…