Abstract
The research problem was to design and evaluate an Audio-Tutorial and thirty-five millimeter slide instruction program to use at the college freshman level for instruction in the area of basic semiconductor electronics. The procedure followed was to study the materials and research results of other experimenters in this area and to analyze the contents of the subject to be taught. Using the analysis of subject content the media were developed. The media in this study consisted of audio tape scripts of theory and laboratory experiment procedure, supported by thirty-five millimeter slides of the laboratory apparatus and instruments. At the same time the pretest/posttest instrument was d eveloped and sent to a jury of experts in the fields of electronics and media. The test items were revised and the final pretest/posttest containing 122 items was prepared. The audio tapes and thirty-five millimeter slides were tried out on laboratory assistants and revised into the form used during the pilot study. The pilot study was conducted at Kansas State College of Pittsburg, Kansas, on a group of thirty-four students enrolled in a freshman course in basic semiconductor electronics. The subjects were randomly divided into two groups, and the two groups were randomly assigned to the treatments; the pretest was administered to all subjects. The treatments in this study consisted of two teaching techniques applied to the randomly selected groups of students. One group received instruction by the conventional lecture-laboratory technique. The second group received nearly all of their instruction from audio taped lectures and audio taped instructions for laboratory experiments with thirty-five millimeter color slides as support materials. The first group was designated the control treatment and the second group was designated the experimental treatment. At midterm, the two groups were rotated from one treatment to the other in order to eliminate instructor bias. The experiment was continued until the end of the term and the posttest was administered. ...
Brown, Alpha Otis (1971). The development and application of audio-tutorial materials for teaching selected units in semiconductor electronics. Doctoral dissertation, Texas A&M University. Texas A&M University. Libraries. Available electronically from
https : / /hdl .handle .net /1969 .1 /DISSERTATIONS -169649.