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Kramer, IJsbrand M.; Dahmani, Hassen-Reda; Delouche, Pamina; Bidabe, Marissa; Schneeberger, Patricia – CBE - Life Sciences Education, 2012
The large number of experimentally determined molecular structures has led to the development of a new semiotic system in the life sciences, with increasing use of accurate molecular representations. To determine how this change impacts students' learning, we incorporated image tests into our introductory cell biology course. Groups of students…
Descriptors: Computer Uses in Education, Introductory Courses, Biology, Control Groups
Schroeder, Mary M.; Burns, Connie S.; Reicks, Marla M. – Journal of Extension, 2011
Use of interactive whiteboards (IWBs) in school classrooms and conference rooms is increasing. To evaluate the effectiveness of IWBs as a tool for Extension education, two groups of 3rd and 4th grade Minnesota students (n=325) were taught nutrition using traditional methods or IWBs. Significant increases in knowledge and behavior were observed in…
Descriptors: Extension Education, Nutrition, Classrooms, Grade 4

Maddux, Cleborne D. – Computers in the Schools, 1995
Discusses problems of internal and external validity in research in educational computing. Highlights include three stages of modern research in educational computing, the need to describe control groups and instructional methodologies, and the need for a balance between theory and practice. (LRW)
Descriptors: Computer Uses in Education, Control Groups, Research Methodology, Research Problems
Garcia, Penny Ann – Information Technology in Childhood Education Annual, 2002
The classroom teacher's comfort and familiarity with computers and software influences student-computer use in the classroom. Teachers remain mired in repetitive introduction of basic software mechanics and rarely progress with students to advanced concepts or complex applications. An Online Assistant (OLA) was developed to accompany the…
Descriptors: Experimental Groups, Control Groups, Familiarity, Computer Uses in Education